Design Signoff & Verification
Long-cycle design programs where IP, foundry, and ecosystem partnerships execute against tapeout and market windows.
Inside this journey
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Pre-Discovery
Align the room on outcomes, decision process, and constraints before deeper technical diagnosis.
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Stakeholder Alignment
Confirm decision roles (Director, VP, CFO), timeline, tapeout constraints, and what ‘good’ looks like for each stakeholder.
Alignment Questions
Quick check — Who’s actually in the room?
- Which people or roles will be directly involved in deciding whether to adopt a new signoff solution for this node?
- Who is the single person we should view as the primary decision owner for this initiative?
- Who holds the budget approval authority for signoff tool purchases and pilot compute commitments?
- How do your stakeholders prefer technical validation to be presented (e.g., numeric correlation, foundry letter, side-by-side silicon comparison, runtime benchmarks)?
- Tell us about a recent technical recommendation that won approval — what helped that become a yes?
If a false-pass happened: the real consequences
- If a false-pass escaped to fab on this tapeout, what would the practical impact be (choose all that apply, then quantify below)?
- Give specific numbers or ranges for the biggest impacts you selected above (e.g., $ mask cost, months of delay).
- How do those potential outcomes feel to the leadership team—panic, urgent, manageable, or tolerable risk?
- When a risky signoff decision comes up, how is it typically escalated (who’s called, how fast, and what evidence do they require)?
- Have you calculated an internal threshold for acceptable respin probability or expected cost that would justify a tool change? If so, what is it?
Where 'good enough' becomes unacceptable — defining ‘good’ for each stakeholder
- When you hear claims like '1% correlation to silicon', which stakeholder benefit does that signal first to you—cost avoidance, schedule confidence, engineering velocity, or something else?
- For each role below, please select the top 1–2 success metrics that would convince them a pilot worked (we’ll ask you to map values next): Director of PD, VP Engineering, CFO, Signoff Engineers.
- Please assign numeric targets (or qualitative thresholds) for the most important success metrics you just selected — list role then target (e.g., Director of PD: correlation ≤1.0%).
- Which stakeholder will prioritize runtime and capacity concerns over correlation accuracy, and which will prioritize correlation over runtime?
- How will each stakeholder know the pilot is successful on day one, week four, and at pilot close? Describe the tangible signals for each milestone.
Hard dates, tapeout windows, and absolute constraints
- What are the non-negotiable tapeout deadlines, foundry submission freezes, or blackout periods that define our latest possible pilot completion date?
- Please provide the target tapeout date, mask commit date, and any hard cutover windows (dates).
- How much schedule slack do you typically have between signoff completion and tapeout, in weeks?
- If a pilot delivers later than expected, what are the immediate operational consequences for the program (e.g., miss tapeout, accelerate other tasks, accept risk)?
- Are there internal approval gates or board-level reviews tied to this node transition that we should align to? If yes, name them and their timing.
Who owns the data, access, and IP — and what must be protected?
- What type of access can you provide for a pilot run on your tapeout-ready design: full design DB, extracted netlist, masked/redacted data, or only summarized outputs?
- Are there IP, export control, or foundry NDAs that restrict where or how we can run the pilot (on-prem only, approved cloud, partner facility)?
- What compute infrastructure do you have available for signoff on the largest designs (select all that apply and indicate rough capacity below)?
- How sensitive is your team to handing source-level design data to an external vendor for benchmarking? Describe feelings and any required mitigations.
- What license or foundry documentation constraints must we satisfy before running correlation work (e.g., SPICE deck, PDK access, foundry NDA)?
Stories that matter — past correlation gaps and what you learned
- Think about your last node transition where correlation drifted—what exactly diverged (timing, power, IR, corners) and by how much?
- How did you discover the divergence—silicon measurements, post-silicon debug, customer complaints, or gate-level failures?
- What root causes were suspected or confirmed (extraction differences, OCV/SSO modeling, aging, PVT corners, data translation)?
- How long did triage and remediation take, and what was left unresolved at tapeout?
- What investigative artifacts exist from that effort (scripts, correlation reports, silicon-vs-tool plots) that we could review to accelerate root-cause analysis?
Picking tradeoffs — accuracy vs runtime vs cost
- If improving correlation required more runtime or compute cost, how would your team prioritize accuracy vs schedule vs budget?
- What is the CFO’s maximum tolerable spend increase (percentage or $) in order to materially reduce respin risk for this node?
- Which of these tradeoffs would be a deal-breaker for implementation after a successful pilot?
- How tolerant is your engineering team of changing debugging/reporting formats if it materially improves correlation?
- Who on your team would we involve to evaluate the runtime/cost tradeoff practically (names and roles)?
A pilot they'd actually green-light — scope, signals, and governance
- What minimal pilot scope would the Director of PD and VP Engineering sign off on tomorrow (single block, multi-block subset, full-chip run)?
- List the top 3 success signals that would convince each stakeholder to move from pilot to phased rollout (e.g., correlation ≤1% on critical corner, runtime <X hours on largest job).
- What governance model will you require to resolve any correlation gaps discovered during pilot (weekly tech reviews, escalation to VP, joint debug war room)?
- How much compute and engineer time can you commit to the pilot (e.g., number of cores, nodes, and FTE hours per week)?
- Who will sign final pilot acceptance and what evidence do they need attached to the acceptance (reports, foundry letter, runtime logs)?
Immediate next steps — what we need from you to start
- Which of the following can you supply within two weeks to get a pilot scheduled (select all you can provide quickly)?
- Who is the day-to-day technical contact we should schedule initial workshops with? Please provide name, role, and preferred contact method.
- What are your preferred governance cadences for the pilot (weekly sync, biweekly executive check-in, ad-hoc escalation)?
- Is there anything else we should know now that would dramatically speed up or block a pilot (security scans, procurement lead times, travel restrictions)?
- Finally — on a scale from 1–10, how ready is your team to start a technical pilot to validate signoff correlation on this node (1 = not at all, 10 = ready now)?
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Current State Mapping
Document the existing signoff flow, toolchain, past silicon correlation, false-pass incidents, and compute capacity limits.
Current State
Start Here: Map Your Signoff Landscape
- Which signoff disciplines are part of your current final-quality flow for the latest tapeout?
- Which primary signoff tools and versions did you run for that tapeout (list vendor and tool name, e.g., Synopsys PrimeTime vX.Y)?
- What process node and tapeout date are we discussing?
- Roughly how large was the design you used for signoff (logic cells / mm^2 / flip-flops / hierarchical blocks)?
- Do you maintain a single extracted netlist that feeds timing, power and IR signoff—or do you stitch results from separate point tools?
Are You Comfortable Betting the Tapeout on Your Current Flow?
- How confident are you that your current signoff flow would catch a silicon-critical timing or power issue before tapeout?
- What margin of timing/power correlation vs actual silicon do you consider acceptable for this node?
- When you say 'confident' or 'not confident,' what specific evidence or lack of evidence drives that feeling?
- If your current flow missed a critical violation, what would be the immediate business impact you expect (choose all that apply)?
- Who in your organization would need to sign off to accept the current level of risk on this tapeout?
Where Have Results Surprised You — The Moments That Changed Trust
- Tell us about the most recent time your signoff results diverged from silicon—what happened, and why did it matter?
- How often do you see post-silicon delta between signoff predictions and measurements that exceed your acceptable margin?
- Which corners or modes tend to show the largest correlation gaps (e.g., SS slow, FF fast, FF slow + TT aging)?
- Do you have concrete artifacts (timing reports, margin plots, silicon scan data) from those surprises you can share for analysis?
- How did those surprises change internal trust in the toolchain or people responsible for signoff?
Who's Actually Signing Off — Roles, Process, and Politics
- Who has final signoff authority today—and do you ever have conflicts between owners that delay decisions?
- Which formal staging gates does a design pass through before physical tapeout (e.g., block-level signoff, chip-level signoff, foundry pre-check)?
- Is your signoff flow and approval path documented and version-controlled?
- What escalation path do you follow when a signoff disagreement arises (who resolves disputes and how long does it take)?
- How would you describe stakeholder sentiment toward switching or augmenting the signoff toolset right now?
What's Breaking the Build: Translations, Scripts, and Tool Handoffs
- To what extent do handoffs and file translations between tools introduce uncertainty in your results?
- Which extraction and signoff components do you run in-house vs. via third-party tools (extraction, liberty/timing models, parasitic extraction, SDF/FSDB generation)?
- Do you rely on manual scripts to translate between formats (for example, GDS->LEF, SPEF->SPEF-PAR)? How stable are those scripts?
- Have you traced any false-positives or false-negatives back to a translation or netlist mismatch? Please describe one example.
- Would consolidating to a single shared extracted netlist be feasible for you in a pilot?
How Close Is Your Compute to Breaking?
- When you run full-chip signoff on the largest designs, how often do you hit queue or memory bottlenecks that delay delivery?
- Describe your compute environment for signoff: on-prem cluster, cloud burst, hybrid, or workstation-based?
- What are typical runtimes for full-chip STA and power jobs on your largest design (give ranges in hours/days)?
- What peak node/core/memory configuration do you have available for signoff jobs today?
- If a new engine required 2–4× more memory per job to meet correlation goals, how feasible is that scale-up for you?
How Do You Detect and Handle False Passes?
- When a design ships and later shows a field failure or silicon mismatch, how do you determine whether signoff issued a false pass?
- What methods do you use to validate signoff predictions prior to tapeout (internal silicon correlation labs, golden masks, targeted silicon brings)?
- How long does it typically take from detecting a mismatch to completing root-cause analysis and assigning corrective actions?
- Do you track false-pass incidents in a central defect/capture system and trending dashboard?
- How tolerant is leadership to a small, quantified residual risk of false pass in exchange for faster runtimes or lower compute cost?
If You Could Improve One Thing Before Tapeout, What Would It Be?
- If you had to pick the single most valuable improvement we could deliver before your next tapeout, what would it be (accuracy, runtime, capacity, foundry certification, debugging)?
- What numeric targets would make you comfortable to move forward—correlation % target, runtime threshold, and compute profile?
- Who would be the executive-level sponsor we should align to that outcome (name/title)?
- What would be an acceptable pilot scope and duration to prove that improvement (single block, full-chip; weeks/months)?
- What would a visible sign that this single improvement “worked” look like for your team and leadership?
Evidence Locker — What Can You Share Right Now?
- Which of the following artifacts can you provide for an initial benchmark engagement?
- Are there legal or IP constraints (NDA, limited sharing) we need to know before you can provide those artifacts?
- How quickly could you make these artifacts available to an external partner (immediately, weeks, months)?
- Are there specific security controls or review processes required before we access your files (air-gapped transfer, VPN, onsite-only)?
- Who is the technical contact that owns the artifacts and will coordinate transfer (name/title/email)?
Final Reflection: What Keeps You Up at Night About This Tapeout?
- If you imagine the worst-case scenario on this tapeout, what is the chain of events you fear most?
- What past experience, story, or decision still affects how you approach signoff today?
- If you could hand us one piece of context that would dramatically speed troubleshooting, what would it be?
- Realistically, how quickly are you prepared to run a technical benchmark if we demonstrate a secure, low-friction data path?
- Who should we loop in next from your team to accelerate discovery and set up a pilot (name/title)?
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Outcome Discovery
Define target correlation, acceptable runtime and capacity thresholds, respin risk tolerance, and success signals for the benchmark.
Discovery Questions
Tell Us About Your Upcoming Tapeout
- What is the target tapeout date for the design you want to use in a benchmark?
- Which process node is this tapeout targeting?
- How large is the design we would run the benchmark on (approx. cells / instances or post-route gate count)?
- Who on your team will be the primary technical contact for the benchmark and ongoing correlation work?
- Do you already have silicon measurement data from prior tapeouts for correlation comparison?
Are You Quietly Betting on a False Pass?
- If your current signoff flow missed a critical timing or power issue and you discovered it only after fabrication, how would that outcome land with your team?
- How often in recent tapeouts have timing or power results from your current flow diverged from silicon beyond acceptable margins?
- When correlation gaps occurred, what was the most common consequence (e.g., schedule slip, respin, late ECO, missed revenue)?
- What emotions do those past outcomes create for you or the design ownership team (fear, frustration, urgency, defensiveness, other)? Please describe.
- What is the maximum business impact (mask cost + time + revenue) you are willing to risk per tapeout before you would require a tool change?
Where Correlation Gaps Actually Show Up
- Which analysis stage do you suspect causes the biggest mismatch with silicon today?
- Which corners and modes show the largest drift versus silicon (e.g., SS worst-case, TT nominal, high-temp power), and by roughly how much?
- Are specific design blocks or macros repeatedly responsible for the worst correlation gaps?
- What artifacts do you currently generate and retain that would help us triage correlation (golden netlist, extracted parasitics, silicon trim logs, measurement waveforms)?
- Tell us about a single concrete example where the flow mis-predicted silicon—what happened and how did you discover it?
What Would 'Ship With Confidence' Actually Feel Like?
- If correlation were consistently within your target margin, what decisions would you make differently in the final weeks before tapeout?
- What target correlation threshold would you need to see to consider a new signoff tool 'acceptable'?
- What maximum acceptable runtime on your largest design would still fit your release cadence (per full MCMM run)?
- How much respin probability are you willing to tolerate post-signoff (choose the closest)
- What would be the three most persuasive success signals from a benchmark that would convince your VP/CFO to back a tool rollout?
What’s Really Driving Your Timeline Pressure?
- Are schedule constraints forcing you to accept known correlation gaps today?
- Which external dependencies are non-negotiable for your tapeout milestone (foundry certification, partner integrations, customer delivery), and which can shift?
- What is the absolute latest date you can accept an extended signoff runtime or additional verification activity before the tapeout must proceed?
- How do you currently prioritize fixes that appear late in flow—quick ECO, hold for next tapeout, or emergency respin?
- Describe one recent moment where timeline pressure forced a risky trade-off in signoff—what did you compromise and why?
Who Holds the Keys?
- Who are the decision-makers that must sign off to accept a new toolchain for tapeout (list roles and how they define 'good')?
- Which stakeholder is the biggest blocker in past tool evaluations, and what was their core concern?
- For each key stakeholder, what would a successful pilot need to show to earn their approval?
- Who will own day-to-day triage if correlation gaps appear during the pilot (name/role)?
- What governance cadence would you prefer for resolving open issues during a pilot (weekly review, ad-hoc, daily standups)?
If Runtime Spikes, Where Will the House Fall?
- If a full MCMM run on your largest design took twice the expected time, what immediate impacts would you face?
- What compute resources are currently dedicated to signoff (on-prem clusters, cloud instances, cores, memory)?
- Do you have the option to burst to cloud for short spikes, and if so, which providers or policies apply?
- What is the maximum hourly compute spend you are willing to allocate for a pilot benchmark?
- Have you experienced memory or license contention on large runs before? If so, describe the symptoms and frequency.
Are You Ready to Investigate Correlation Gaps Rapidly?
- Do you have a reproducible path from failure to root cause today (scripts, ownership, golden artifacts) or is triage ad-hoc?
- Which measurement capabilities do you have to validate timing/power on silicon (on-chip monitors, off-chip probes, measurement cadence)?
- How quickly must correlation issues be resolved to keep program schedule healthy (SLA in days)?
- Who on your engineering team has the strongest experience debugging signoff-to-silicon mismatches?
- Would you be willing to share a sanitized runset or a small failing corner for us to analyze during a pilot?
What Would Make a Pilot Unambiguously Successful?
- What minimal pilot scope would convince you the tool is a fit (single block multi-corner, full-chip nominal, IR/EM run only, other)?
- Which acceptance criteria must be met at the end of the pilot for you to recommend adoption?
- Pick the correlation and runtime acceptance combo that would be minimally acceptable for pilot success.
- How long should the pilot run to produce defensible results for stakeholders?
- Who must sign off on pilot completion and what deliverables should they receive (reports, raw logs, runbooks)?
Change, Risk, and the Human Side of a Tool Switch
- What parts of your current workflow would your engineers miss or resist changing the most?
- Have you done a tool migration before? What worked and what backfired in that rollout?
- What training or enablement would make your engineers comfortable debugging in a new signoff environment?
- Which risks do you want explicitly mitigated in a pilot agreement (data security, IP protection, performance regressions, foundry acceptance)?
- Describe any organizational or procurement hurdles we should plan for before scheduling a pilot.
Ready To Move Toward a Clear, Low-Risk Pilot?
- What are the top three blockers that would prevent you from authorizing a pilot in the next 30 days?
- Which commercial or legal thresholds need to be resolved before you can engage in a pilot (NDA, MSA, PO, procurement approval)?
- If we proposed a concrete pilot plan this week, what internal signoff path and timeline would you need to start?
- What would you like to see in a one-page pilot proposal to feel confident sharing it with your VP/CFO?
- Any final concerns or context we haven't asked about that would change how we run the benchmark or present results to your stakeholders?
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Solution Experience
Run the benchmark plan using the customer’s tapeout-ready design to validate correlation to silicon, runtime, and foundry certification pathways.
Experience Meetings
- Benchmark Kickoff & Current-State Confirmation
- Benchmark Plan Review & Acceptance Criteria Alignment
- First Benchmark Execution & Immediate Diagnosis
- Correlation Gap Triage & Engineering Deep-Dive
- Final Validation Review & Foundry Certification Readiness
- Engineering teams to execute the prioritized experiments with pre-defined inputs and expected outcomes.
- Finalize and distribute the run matrix and acceptance thresholds as a signed plan document.
- Customer to confirm which silicon measurement points are authoritative for correlation scoring.
- Schedule pilot run windows and reserve compute as required.
- Environment & Run Status Check
- Obtain validated correlation and runtime data for the initial benchmark runs.
- Determine whether the results satisfy the agreed future-state proof or require triage.
- Create an immediate list of prioritized technical investigations if gaps exist.
- Seller to deliver the validated run report comparing tool output to silicon and incumbent flow (with raw logs attached).
- If gaps exist, open prioritized tickets with reproduction steps, responsible owners, and target dates.
- Schedule any required follow-up targeted runs or experiments.
- Recap Findings & Impact
- Produce a clear list of root-cause hypotheses mapped to specific experiments.
- Assign owners and timelines for each experiment and fix with measurable success criteria.
- Ensure every proposed experiment ties back to eliminating the customer's primary consequence (e.g., false-pass risk).
- Introductions & Objectives
- Customer to provide any additional measurement data or golden references requested for deeper correlation checks.
- Seller to produce an interim impact report after experiments indicating whether future-state proof is achieved or further actions are needed.
- Executive Recap of Objectives and Success Signals
- Obtain a clear go/no-go decision against the pre-agreed acceptance criteria.
- Confirm foundry certification readiness or required next steps to achieve it.
- Document remediation plans for any remaining gaps and assign owners and deadlines.
- Seller to produce the final validation report and package required for foundry submission.
- Customer to confirm executive sign-off and authorize next-phase pilot or remediation work.
- If go decision: schedule kickoff for Solution Scope / Pilot onboarding and compute scaling tasks.
- Create a single, unambiguous current-state sentence that all parties can repeat back.
- Surface and quantify the business/technical consequences of failing signoff correlation.
- Confirm a one-sentence future state and concrete success signals for the benchmark.
- Agree and capture the exact data and access the EDA team needs to run the benchmark.
- Customer to deliver tapeout-ready design, PDK, foundry doc checklist, and silicon measurements (file list and delivery date).
- Customer and seller to confirm compute instance specs, licenses, and access accounts.
- Assign primary run owner and debugging owner with contact details and SLAs for responses.
- Recap Objectives & Success Signals
- Ensure the run matrix maps directly to the customer's measurement points and future-state proof.
- Agree numeric acceptance criteria for correlation, runtime, and capacity.
- Confirm the foundry certification path and required deliverables.
- Obtain stakeholder sign-off on plan, timelines, and escalation gates.
- Present Run Results vs Silicon and Incumbent Flow
- Hypothesis Workshop
- One-Sentence Current State
- Final Metrics Presentation
- Run Matrix & Scope
- Remaining Risks & Mitigations
- Concrete Consequence Review
- Design Targeted Experiments
- Highlight Immediate Impact Items
- Correlation & Runtime Acceptance Thresholds
- One-Sentence Future State / Success Signals
- Foundry Certification & Compliance Path
- Tie Results Back to Customer Problem
- Estimate Effort & Timeline
- Foundry Certification Steps & Timeline
- Data & Access Checklist
- Decide Next Diagnostic Steps
- Phasing, Schedule & Contingency
- Decision & Escalation Path
- Go/No-Go Decision & Next Phase
- Roles, Timeline & Decision Gates
- Approval & Decision Points
- Wrap-up & Action Summary
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Solution Scope
Specify disciplines, design blocks, acceptance criteria (correlation %, runtime limits), pilot phasing, and responsibilities.
Scope Configuration
- Generate unified extracted netlist with parasitics
- Full-chip multi-corner multi-mode static timing analysis
- Aging and on-chip variation timing analysis
- Full-chip power-integrity (IR drop) analysis
- Electromigration and current-density signoff
- Physical verification: DRC and LVS signoff runs
- Foundry-certification package generation
- Silicon correlation dataset and results export
- Runtime and capacity stress run on largest design
- Unified violation and cross-discipline traceability report
- Top failing timing path extraction with net-level traces
- Automated ECO/fix suggestion generation
- Signoff database handoff for tapeout packaging
Scope Questions
Generate unified extracted netlist with parasitics
- Do you require a unified extracted netlist (single netlist for timing, power, IR, reliability)?
- What layout/data formats will you provide for extraction?
- Which parasitic formats are required for downstream tools?
- Do you have an existing parasitic deck (extraction rules) from the foundry or internal tool?
- Target acceptance criteria for extraction accuracy (e.g., R/C tolerance vs reference)?
- Who will own verification of the extracted netlist and signoff acceptance (team / role)?
Full-chip multi-corner multi-mode static timing analysis
- How many PVT corners and modes do you plan to sign off (typical range)?
- Which signoff libraries and Liberty versions will be used?
- What is your target correlation threshold to silicon for timing (correlation % or slack tolerance)?
- Do you require hierarchical or flattened full-chip STA for the benchmark run?
- What runtime or wall-clock limits should we aim for on full-chip MCMM runs?
- Are there specific failure modes you want prioritized (e.g., cross-domain paths, multi-clock interfaces)?
Aging and on-chip variation timing analysis
- Do you need analysis for aging mechanisms (BTI, HCI) and lifetime targets (e.g., 10 years)?
- Which OCV/OCV-less strategy is expected (traditional OCV, statistical timing, or other)?
- Target lifetime and margin policy for aging analyses?
- Do you have device-aging models and foundry-provided variability models available?
- What acceptance thresholds should trigger recommended design changes (e.g., slack degradation > X ps or %)?
- Who will own validation of aging/OCV findings and approve mitigation actions?
Full-chip power-integrity (IR drop) analysis
- Do you require static IR and/or dynamic IR analysis across switching scenarios?
- What IR drop limits and voltage guard-bands are used for acceptance?
- Will you provide switching/activity files (SAIF/VCD) or do we need to generate representative vectors?
- Which power grid formats and PDN data will be supplied (e.g., power netlist, power stripes, via definitions)?
- Do you require IR analysis tied to signoff timing (co-optimization) or as a separate deliverable?
- Who is the owner for IR signoff decisions and mitigation (PD lead, PMIC team, vendor)?
Electromigration and current-density signoff
- Do you require EM signoff across all metal layers or only on critical nets?
- What current-density thresholds or foundry EM rules should we use?
- Will you supply expected DC and transient current profiles for nets of interest?
- Do you require per-via and per-track analysis for hottest nets?
- Acceptance criteria for EM failures (e.g., life expectancy in years or allowable risk)?
- Who will take ownership of mitigation (layout changes, via insertion, metal width increases)?
Physical verification: DRC and LVS signoff runs
- Which foundry rule deck version(s) and DRC/LVS rule sets should be used?
- What layout format and layer map will you supply for PV (GDS/OASIS/OpenAccess, mapping file)?
- Do you require full-chip DRC/LVS or per-block runs as part of a phased flow?
- Target turnaround time for DRC/LVS fixes and rechecks during pilot?
- Are there special checks required (mask-rule checks, reticle/MPP checks, OPC interactions)?
- Who owns signoff authorization after DRC/LVS (layout owner, foundry contact, QA)?
Foundry-certification package generation
- Which foundry(s) and process node(s) require certification packages?
- What specific items must the certification package include (model reports, signoff logs, test vectors)?
- Is direct engagement with foundry required to validate the package prior to tapeout?
- What timeline is required to deliver the certification package before tapeout N-steps?
- Do you have any foundry-specific templates or checklist items to embed into the package?
Silicon correlation dataset and results export
- Do you have silicon measurement data available to correlate against (probe results, shmoo plots, wafer data)?
- What formats and volume of silicon telemetry will you provide for correlation?
- Which correlation metrics are required (mean error %, max error, slack distribution comparison)?
- Do you require automated export templates for ingest into your internal dashboards or issue trackers?
- Who owns validation of correlation results and triage of correlation gaps?
- What is the expected confidentiality or access control level for silicon datasets?
Runtime and capacity stress run on largest design
- What is the largest design size for stress runs (approx. gates, instances, nets)?
- What compute environment will be used for the benchmark (on-prem cluster, cloud, hybrid)?
- What wall-clock or throughput SLA must we meet for stress runs on the largest design?
- Do you have existing job scheduling or containerization constraints (Slurm, Kubernetes, LSF)?
- What peak memory and disk footprint can we assume per job or per node (GB/TB)?
- Should stress runs include throttling/scale tests (varying cores, memory) to define optimal cluster sizing?
Unified violation and cross-discipline traceability report
- Do you require a unified report linking timing, IR, EM, and DRC/LVS violations to the same netlist elements?
- Which report formats are preferred for consumption (HTML dashboard, PDF, CSV, JSON/API)?
- What traceability depth is required (path-level, net-level, instance-level)?
- Do you want integration with your issue tracker (JIRA, Polarion, internal) for auto-creating tickets from violations?
- Who will be the primary consumers of the unified report (PD engineers, layout team, reliability)?
- What SLA for report generation and freshness is required (e.g., within X hours of run completion)?
Top failing timing path extraction with net-level traces
- How many top failing paths should be extracted by default for analysis?
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Mutual Commit
Agree commercial and legal terms, pilot scope, success metrics, compute commitments, and governance for resolving correlation gaps.
Agreement Modules
- Non-Disclosure Agreement (NDA)
- Master Services Agreement (MSA)
- Statement of Work (SOW)
- Pilot Agreement
- Commercial Terms & Pricing
- License & Usage Agreement
- Service Level Agreement (SLA)
- Data Access & Security Addendum
- Compute Resource Commitment
- Foundry Certification & Compliance Plan
- Success Metrics & Acceptance Signoff
- Governance & Escalation Plan
- Change Order & Scope Control
- Liability, Indemnification & Warranty Terms
- Termination & Exit Plan
- Post-Pilot Transition & Rollout Plan
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Deployment
Operationalize rollout with readiness checks, enablement, and outcome validation.
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Pre-Deployment Readiness
Confirm data access, foundry docs, licenses, compute sizing, owners, and risk controls before executing the pilot.
Readiness Questions
Getting Comfortable Together
- Tell us your role and the primary tapeout or project this pilot would support.
- What is the target tapeout date or milestone we should design the pilot around?
- Who will be our day-to-day technical contact and who will be the executive sponsor for decisions?
- Which process node and foundry node is this pilot targeting (e.g., 7nm, 5nm, 3nm)?
- Give one sentence that best captures your biggest worry about this upcoming tapeout.
If This Goes Sideways, Who Feels It Most?
- How confident are you that your current signoff flow would catch a critical silicon-timing divergence at this node?
- If a false-pass occurred on this tapeout, what would the primary consequence be for your team or company?
- Historically, how many tapeouts in your org have required a respin or significant patch due to signoff misses in the last 3 years?
- Who inside the company would be most pressured or exposed if the pilot revealed a mismatch between tools and silicon?
- How does the prospect of a respin make you or your team feel—frustrated, anxious, resigned, or something else?
Are You Confident Your Data Can Tell the Whole Story?
- Do you have accessible silicon measurement data from prior tapeouts for correlation (e.g., silicon timing, power, on-chip variation measurements)?
- Which foundry and PDK artifacts can you provide for the pilot without additional approvals (select all that apply)?
- Are there IP or NDA constraints that would limit sharing files with our engineering team or require onsite-only execution?
- What formats and sizes are your design data and signoff inputs (e.g., full-GDSII, block-level LEF/DEF, extracted SPEF), and are they ready for transfer?
- If any critical data is missing today, how long would it take to assemble and approve it for pilot use?
What Would Break the Pilot Before It Starts?
- If we had to begin the pilot next week, what single technical or organizational barrier is most likely to stop us?
- Do you have the necessary tool licenses and entitlement for the test scope we discussed (timing, power, extraction, reliability)?
- Who controls the licensing and sandbox environments (internal tools team, vendor, cloud provider), and how quickly can they grant access?
- Have you faced runtime or capacity surprises on your largest designs before? If yes, please describe one incident and the impact.
- What security or IP governance checks must be completed before we can move files between teams or to the cloud?
What Would It Take to Run Your Biggest Design Smoothly?
- Describe the largest design or block (size, cell count, corners/MCMs) you expect the pilot to analyze.
- What are your acceptable runtime expectations for the largest full-chip or block runs (wall-clock and walltime per corner)?
- What compute infrastructure will be available for the pilot—on-prem cluster, hybrid, or cloud burst—and do you allow external cloud bursting?
- Do you have storage performance constraints (IOPS), quota limits, or data-retention policies we should plan around?
- If compute or license shortages appear mid-pilot, what fallback is acceptable—queue to existing cluster, reduced corner set, or delayed runs?
Who Owns What — and How Will We Move Fast?
- Who will be the primary owner for: data handoff, run orchestration, results triage, and executive signoff? (name/role for each)
- Which stakeholders must approve pilot scope and go/no-go decisions (select all that apply)?
- What cadence and format of governance do you prefer for the pilot—daily standup, weekly technical sync, and executive checkpoint?
- If a correlation gap emerges, what's your preferred escalation path and timeline for a joint debug (e.g., 48-hour triage, 1-week engineering deep-dive)?
- How would you like success/failure decisions documented—pass/fail checklist, judged KPIs, or executive signoff memo?
How Will We Know We’ve Won (Beyond a Green Light)?
- What minimum correlation to silicon do you require to consider the pilot a technical success (e.g., mean absolute error %, percentile targets)?
- Aside from correlation, which acceptance signals matter most—runtime, foundry certification sign-off, repeatability, or engineering confidence?
- What level of runtime improvement or predictability would justify broader rollout in your org?
- How much residual respin risk (probability) are you willing to tolerate post-adoption to proceed to foundry?
- Who must sign the final acceptance (name/role) and what evidence package do they require (reports, foundry letters, sample silicon comparisons)?
What Risks Are You Not Willing to Trade Away?
- Which of these risks are absolute show-stoppers for you in a pilot: IP exposure, failed foundry certification, missed tapeout date, or uncontrolled cost?
- What security controls or audits do we need to agree to before any file movement (e.g., encryption, logging, SOC2, on-prem-only execution)?
- If a gap is discovered that could delay tapeout, what remediation window is acceptable (days/weeks) before escalation to executives?
- Do you have an internal rollback or contingency plan if the pilot uncovers systemic foundry-correlation issues?
Let’s Walk Through a Real Pilot Run
- Which design slice should we use as the pilot artifact—full-chip, top critical block, or representative IP block?
- Map the ideal pilot timeline: handoff -> first-run -> debug window -> re-run -> final report. How long for each phase?
- What level of engineering enablement do your teams require for interpreting reports and debugging (guided workshop, self-serve docs, live support)?
- How granular do you expect our reports to be—block-by-block, net-level examples, or executive summaries with drill-down capability?
- If we hit a stubborn correlation gap, what remediation path is preferred: joint debug with your team, vendor patch, or foundry engagement?
Readiness Triage — Quick Checklist and Next Steps
- If we aimed to start in two weeks, which of these items are already green: PDK access, silicon data, licenses, compute quota, signed NDA?
- For any item not ready, what is the realistic date to have it cleared?
- What is the single best next action you can commit to this week to remove the biggest blocker?
- Who should be invited to an initial kick-off meeting to accelerate approvals and technical handoffs (list names/roles)?
- Finally, what would success in this readiness phase look like 14 days from now—list three measurable checkpoints.
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Deployment Enablement
Schedule pilot runs, coordinate teams, deliver engineer enablement on reports/debugging, and execute phased rollout tasks.
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Validation Checklist
Verify acceptance criteria: correlation targets, runtime on largest designs, foundry certification, and documented mitigation plans for regressions.
Validation Questions
Quick Intro: Where this conversation starts
- Who is the primary sponsor for signoff decisions on this tapeout?
- What process node and foundry are you targeting for the upcoming tapeout?
- What is your current tapeout timeline (milestone for mask submission)?
- Which signoff disciplines are part of your current final-gate flow?
- How would you describe your team’s current confidence level in shipping without a respin?
If this fails, what breaks first?
- If a single signoff mismatch caused a respin, what would that cost your program in schedule and dollars?
- Tell us about any past false-pass you experienced: what happened, which block or signoff discipline failed, and what followed?
- How often do you see divergence between your flow and foundry reference or silicon beyond your acceptance threshold?
- Who in your organization ultimately accepts the residual risk to ship when correlation gaps remain?
- When you face that trade-off, what emotions or pressures show up (e.g., fear of schedule slip, political pressure to ship)?
The invisible flow: how your signoff really behaves
- Which parts of your current signoff flow do you suspect are silently introducing correlation error?
- Please map your existing signoff flow end-to-end (tools, scripts, handoffs) and note any fragile handoff points.
- Which tools/vendors are involved today for extraction, STA, power, and reliability?
- How frequently do you re-run correlation after a release or PDK update?
- Where do you run into the most manual intervention—report parsing, golden comparisons, or netlist reconciliation?
When accuracy and scale collide
- Which is winning today for your team: matching silicon closely, or keeping runtimes and compute costs low?
- Describe your largest design sizes (in gates or netlist MB) and typical runtime for a full-chip MCMM signoff run.
- What compute infrastructure do you use for signoff (on-prem, cloud, hybrid)?
- Have you experienced runtime regressions when swapping engines or updating flows on your largest designs?
- What runtime or capacity threshold would you require to consider a new tool acceptable for production?
What would 'one percent' actually change for you?
- If a new engine matched silicon within ~1% on your reference blocks, how would your go/no-go decisions change?
- Which correlation targets do the different stakeholders require (Director, VP, CFO)?
- For timing, power, and IR/EM, which single metric matters most to you when judging a new signoff engine?
- What respin risk tolerance would justify a tool change to your CFO (i.e., acceptable probability of respin reduction)?
- How would you measure the financial ROI of improved correlation over the next 12 months?
The hidden roadblocks to switching
- What’s the real reason you might keep using an incumbent despite known correlation gaps?
- Which integration areas worry you most when evaluating a new suite (extraction parity, netlist fidelity, reporting formats, workflows)?
- How much engineering effort would you estimate is available for validating and migrating a pilot (FTE-weeks)?
- What foundry certification or qualification steps must happen before you can consider a wider rollout?
- What non-technical barriers (procurement, legal, licensing) could slow or stop adoption?
Proof that changes stick: what evidence convinces you
- What would be the single most convincing piece of evidence that a new signoff engine is production-ready for you?
- Would you run an internal benchmark using one of your latest tapeout-ready designs as the test case?
- Which success metrics must that benchmark demonstrate (pick top three)?
- How would you like discrepancy governance to work during a pilot (engineering root-cause, joint war-room, escrowed bug tickets)?
- Who must sign off on pilot success within your org (names or roles)?
Next steps — low-risk experimentation you can do this month
- What’s the smallest pilot you’d authorize to learn fast and limit risk (scope and duration)?
- Which design(s) would you be willing to provision for a pilot (block, subsystem, full-chip)?
- What data access constraints or NDAs would we need to clear to proceed?
- What timeline would you expect for pilot kickoff and initial results?
- After the pilot, what decision outcomes would you consider acceptable (go to phased rollout, more validation, stop)?
- Any final risks, constraints, or expectations we should know about before proposing a pilot plan?
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Success
Review pilot outcomes vs success signals, confirm reduced respin risk, capture learnings, and track issues and enhancements.
Success Reviews
- Pilot Outcomes Review & Sign-off
- Technical Root-Cause & Gap Triage
- Respin Risk Quantification & Executive Decision
- Learnings Capture & Enhancement Backlog Prioritization
- Operational Handover & Governance for Production Rollout
Issues & Enhancements
- Assign owners and provisional delivery timelines for top-priority items.
- Deliver interim status updates weekly until acceptance criteria are met.
- One-sentence Current State & Consequence
- Provide a clear, numeric estimate of decreased respin risk and expected cost savings.
- Obtain an executive decision on adoption path and any commercial changes required.
- Define the acceptance gates and timeline tied to business KPIs for rollout.
- Produce an executive decision memo with the probability/cost model and recommended rollout path.
- If adoption approved, trigger commercial/legal steps and update mutual commit documents.
- If conditional approval, list required metrics or fixes and owners to satisfy conditions.
- Retrospective: What Worked / What Didn't
- Capture a complete list of learnings and concrete engineering/product backlog items.
- Prioritize the backlog by business impact and define measurable acceptance tests.
- Introductions & Objectives
- Create prioritized backlog entries in the tracking system with acceptance criteria.
- Schedule engineering sprints or resource allocations to address top items.
- Document reusable test suites and data artifacts for regression verification.
- Pre-Deployment Readiness Recap
- Confirm the organization, runbook, and compute/license readiness for production runs.
- Establish a governance model and escalation path for any future correlation or runtime regressions.
- Agree on KPIs, reporting cadence, and the formal handover timeline to operations.
- Publish the operational runbook and assign named owners for each runbook section.
- Set up the recurring executive and operational reporting cadence and distribute initial KPI dashboard.
- Confirm compute and license provisioning tasks are complete before the handover date.
- Obtain customer confirmation on whether pilot meets each documented success signal.
- Quantify the reduction in respin risk and associated business impact for executives.
- Either secure formal pilot acceptance or a prioritized gap remediation plan with owners and deadlines.
- Publish final pilot report comparing each success signal to outcomes and circulate for sign-off.
- If gaps exist, create remediation tickets with owners, target dates, and acceptance criteria.
- Schedule the decision/acceptance sign-off meeting (if not accepted today).
- Recap Identified Gaps
- Identify a verifiable root cause for each prioritized gap.
- Agree concrete mitigation steps and how success will be validated.
- Assign engineering owners and realistic timelines for remediation and re-test.
- Open engineering tickets with RCA summary, required artifacts, and test cases.
- Schedule re-run test windows and allocate compute resources for remediation verification.
- Probability & Cost Model
- Operational Runbook & Owner Assignments
- Technical Findings & Feature Requests
- One-sentence Current State
- Data Walkthrough
- Hypotheses & Root-Cause Analysis
- Pilot Metrics Presentation
- Governance & Escalation Model
- Sensitivity & Scenario Analysis
- Prioritization by Business Impact
- Recommendation: Adoption Path & Phasing
- Map Results to Success Signals
- Mitigation Options & Proof Plan
- Reporting Cadence & KPIs
- Define Acceptance Tests & Success Signals for Each Backlog Item
- Pilot Close Checklist & Handover Timeline
- Business Consequence & Respin Risk
- Decision & Commercial Implications
- Ownership, Timeline & Acceptance Criteria
- Assign Owners & Timeline for Backlog Items
- Customer Validation & Clarifying Questions
- Decision & Next Steps