Course map
- 1 lesson
Starts with How to Use This Course
- 1 lesson
Starts with Reading Path
- 1 lesson
Starts with STA Glossary
- 1 lesson
Starts with STA Metrics Reference
- 1 lesson
Starts with STA Mastery Cheatsheet
- 16 lessons
Starts with STA Versus Simulation
- 20 lessons
Starts with create_clock Rules
- 16 lessons
Starts with Arrival and Required Times
- 16 lessons
Starts with Latch Timing Model
- 16 lessons
Starts with Why Corners Exist
- 16 lessons
Starts with Flat OCV Derates
- 16 lessons
Starts with Coupling and Aggressors
- 16 lessons
Starts with Closure Strategy
- 16 lessons
Starts with Missing Clock
- 26 lessons
Starts with The Answer Framework
- 4 lessons
Starts with Capstone Brief
About this course
This course teaches static timing analysis as practised at signoff: how every check is derived, what a constraint set really covers, how corners, modes and variation turn into margins, how crosstalk and ECOs affect closure, and how to debug a result you do not trust. Each lesson contains worked numbers, and most have a short Python program that asserts them, so you can change a value and see the consequence. It assumes you can read synchronous RTL and know what a flop is.
Who it is for
Design engineers who write RTL and want to understand what the timing reports say about it, and how to help timing closure.
Implementation and signoff engineers who build constraint sets, run the corner matrix and drive closure.
Interview candidates who need mechanism-first answers, a drawing routine, scenarios and a graded question bank.
Three paths through the course
Design engineer. Timing Paths and Checks, then Constraints and SDC, then Delay Graph and Path Analysis, then Beyond Setup and Hold. Finish with the RTL companion RTL for Timing.
Implementation and signoff engineer. Foundations and constraints first, then Multi-Corner Multi-Mode Signoff, OCV, AOCV, POCV and Variation, Crosstalk and Noise, ECO and Closure and the Debug Playbook. Close with the Capstone Timing Signoff Lab.
Interview. Read the Reading Path for the short route, then work Interview Prep: the framework, the drills, the three scenarios and the Q&A banks. Attempt every drill on paper before reading its answer.
What you will be able to do
Derive setup and hold slack from launch and capture edges, latencies, skew and uncertainty, and compute them by hand.
Read a path report line by line and say where the margin went.
Write and audit constraints: clocks, generated clocks, I/O delays and exceptions, and measure what an exception really covers.
Choose and justify corners, modes, derates and margins, and explain temperature inversion.
Quantify crosstalk delta delay and noise, order SI fixes, and verify them.
Fix hold without breaking setup, use useful skew within its window, and run a closure loop that converges.
Localise a mismatch between two runs or tools, and detect the constraint bugs that hide behind a clean report.
Sign off a block with a checklist and a statement that names its conditions.
Section map
Section | Topics | One line |
|---|---|---|
4 | What STA checks, setup and hold derivations, clocks in timing, delay models. | |
5 | Clocks, generated clocks, I/O contracts, exceptions and environment, with audit habits. | |
4 | Slack propagation with a toy engine, delay budgets, path groups, report reading. | |
4 | Latch borrowing, clock gating, recovery and removal, pulse width and minimum period. | |
4 | The corner and mode matrix, libraries and conditions, implementation versus signoff, scenario debug. | |
4 | Three variation methods, derate policy, path-depth effects, variation signoff. | |
4 | Delta delay, glitch noise, fix order and SI signoff reports. | |
4 | Closure loop, ECO types and risk, useful skew, regression matrix. | |
4 | Constraint bug patterns, mismatch triage, war room, regression hygiene. | |
7 | Framework, drills, three scenarios and the Q&A banks. | |
4 lessons | Audit, fix and sign off a small block with a runnable engine. |
How to study
Read How to Use This Course, then the Reading Path for your role.
Run the Python blocks and change a number; the arithmetic is the lesson.
Answer every check-yourself before revealing the answer.
Keep the Glossary, the Metrics Reference and the Cheatsheet open beside you.
Finish with the capstone.
Time and prerequisites
Allow about 30 hours to read through, and about 55 hours if you run every example and work the exercises. Start with the RTL companions STA Introduction and Setup, Hold and Slack if timing is new to you. For constraints in the context of synthesis see Constraints and Timing. All numbers in the course are illustrative and vendor-neutral; SDC commands are standard and shown as non-runnable blocks.
Check yourself Which path suits a designer who only wants to understand timing reports?
The design-engineer path: foundations, constraints, delay graph and report reading, and the advanced checks; it can stop before the signoff-oriented sections.