Job description
In this role, you will be working on timing sign-off of CPU designs based on latest architectures in the most advanced nodes. Mobile CPU's demand highest performance at optimal power efficiency on a wide voltage range. The product requirements offer ample design challenges to innovate and deliver a differentiated CPU design.
Responsibilities include but are not limited to
Responsible for high performance CPU STA sign-off, power recovery, and timing closure. Perform block level STA environment setup including constraints development, STA regression execution, and timing, power eco generation. Work closely with RTL/DFT teams to define timing constraints for functional and DFT modes. Participate in world-wide STA forum and contribute to defining leading edge STA margin methodologies. Responsible for delivering timing models (ETM, Hyperscale) and timing deliverables (SDC, timing budgets), and support successful integration at SOC level.
Job requirements
- 5+ years of hands on experience in STA of high performance CPU design with frequencies > 2 Ghz.
- Experienced in hierarchical design, budgeting, multiple voltage domains and multiple clock domains.
- Solid understanding of multi-scenario STA and timing constraints.
- Excellent understanding of margining methodologies (OCV/AOCV/POCV) to address process variation, correlation to spice, silicon.
- Experience with design closure across a wide range of operating points (multi-OPP), addressing setup-hold conflicts due to transistor/wire scaling.
- Experience with clock tree analysis and drive physical implementation to achieve a scalable clock tree implementation for smooth timing convergence.
- Experience with custom recipe development for timing closure and power recovery in sign-off tool environment to achieve best in class power efficient high performance CPU.
- Knowledge of low-power techniques, familiarity with multi-voltage island design specification (CPF/UPF).
- Strong skills with Cadence and Synopsys timing sign-off flows.
- Strong scripting skills in tcl, perl, or python.
- Experienced in working on advanced process nodes (7nm)
Plus
- ARM CPU STA experience
- Familiarity with implementation flows (synthesis, place and route, physical verification)
- IR Drop analysis (Static & Dynamic)