Senior Engineer - STA

Key Responsibilities

Static Timing Analysis & Signoff

• Perform block-level and full-chip timing analysis and signoff.
• Drive timing closure across all functional and test modes.
• Analyze and fix setup, hold, recovery, removal, transition, capacitance, and pulse-width violations.
• Perform timing signoff across multiple process, voltage, and temperature corners.
• Execute MCMM (Multi-Corner Multi-Mode) timing analysis and closure.
• Validate timing across hierarchical and flat SoC designs.

Timing Closure

• Drive setup and hold optimization throughout implementation cycles.
• Work closely with Physical Design teams to achieve timing convergence.
• Perform timing ECO generation and validation.
• Analyze critical timing paths and propose optimization strategies.
• Resolve timing bottlenecks while maintaining area and power targets.
• Support late-stage tapeout closure activities.

Cadence Signoff Flow

Strong hands-on experience in:

• Cadence Tempus Timing Signoff
• Cadence Innovus Timing Analysis
• Cadence Voltus Integration
• Cadence Quantus Extraction
• Cadence Conformal ECO
• Cadence Genus Synthesis (preferred)

Signal Integrity & Noise Analysis

• Perform Crosstalk Analysis.
• Analyze and resolve SI-related timing issues.
• Validate noise, glitches, and signal integrity effects.
• Work closely with physical design teams on route optimization and shielding techniques.
• Ensure timing robustness under SI effects.

Low Power Verification

• Verify clock gating implementations.
• Analyze UPF/CPF constraints.
• Validate low-power modes and timing requirements.
• Support power-aware timing signoff methodology.

ECO Implementation & Verification

• Generate timing ECOs for setup and hold closure.
• Work with implementation teams to validate ECO impact.
• Perform incremental timing signoff after ECO implementation.
• Ensure clean final signoff before tapeout.

Cross-Functional Collaboration

• Collaborate with:
  • RTL Design Teams
  • Physical Design Teams
  • DFT Engineers
  • Verification Teams
  • Architecture Teams
  • Foundry Support Teams
• Participate in design reviews and closure meetings.
• Support project execution from RTL freeze to tapeout.

Mandatory Technical Skills

Cadence Tool Expertise

Strong hands-on experience in:

Timing & Signoff

• Cadence Tempus
• Cadence Innovus
• Cadence Quantus
• Cadence Voltus

ECO & Verification

• Cadence Conformal ECO
• Conformal LEC

Synthesis (Preferred)

• Cadence Genus

STA Expertise

Strong knowledge of:

Static Timing Analysis (STA)

MCMM Timing Closure

Full Chip Timing Signoff

Block Level Timing Signoff

Timing ECO Closure

Constraint Development (SDC)

Path-Based Analysis

Graph-Based Analysis

Clock Tree Analysis

Timing Exception Validation

Setup/Hold Closure

Recovery & Removal Checks

Clock Domain Analysis

CDC Timing Understanding

Timing Constraints Knowledge

Strong expertise in:

• SDC Creation and Validation
• Generated Clocks
• Virtual Clocks
• False Paths
• Multi-Cycle Paths
• Asynchronous Path Constraints
• Timing Derates
• OCV/AOCV/POCV
• Useful Skew Methodology

Signal Integrity & Variability Analysis

Experience in:

• Crosstalk Analysis
• Noise Analysis
• OCV Closure
• AOCV
• POCV
• LVF-Based Flows
• Variation-Aware Timing Signoff

Technology Node Experience

Mandatory experience in one or more:

• 28nm
• 16nm FinFET
• 12nm FinFET
• 7nm FinFET
• 5nm FinFET

Preferred:

• 3nm Technology Node
• Advanced FinFET Implementation
• Multi-billion Gate SoCs

4. DFT: Synopsys Tool:

Key Responsibilities

DFT Architecture & Planning

• Define DFT strategy for complex ASIC/SoC designs.
• Develop and review DFT specifications and test architecture.
• Drive DFT implementation from RTL to Tapeout.
• Collaborate with RTL, Physical Design, Verification, and Validation teams.
• Ensure compliance with product quality and test coverage requirements.

Scan Insertion & Scan Compression

• Implement and validate scan architecture.
• Perform scan chain insertion and optimization.
• Develop scan stitching methodologies.
• Implement scan compression techniques to reduce tester memory and test time.
• Debug scan connectivity and chain-related issues.

Responsibilities Include:

• Scan Architecture Definition
• Scan Stitching
• Scan Chain Reordering
• Scan Compression
• EDT Implementation
• Test Logic Verification

ATPG & Pattern Generation

• Generate stuck-at, transition, path-delay, bridge, and cell-aware fault patterns.
• Achieve targeted fault coverage goals for production devices.
• Debug ATPG violations and improve testability.
• Optimize pattern count and test execution time.

ATPG Activities

• Stuck-at Fault ATPG
• Transition Fault ATPG
• Cell-Aware ATPG
• Path Delay ATPG
• Bridging Fault Coverage
• Fault Simulation
• Pattern Validation

MBIST/LBIST Implementation

• Implement memory BIST architecture for embedded memories.
• Support Memory Repair and Redundancy Analysis.
• Integrate and verify LBIST implementation.
• Collaborate with memory compiler and architecture teams.

Expertise Required

• MBIST Planning
• MBIST Integration
• March Algorithms
• Memory Repair Flow
• BISR/BIRA Concepts
• LBIST Flow

JTAG & Boundary Scan

• Implement IEEE 1149.1 compliant JTAG architecture.
• Integrate TAP Controller and Boundary Scan logic.
• Debug JTAG connectivity and verification issues.
• Support board-level test requirements.

Required Knowledge

• JTAG
• Boundary Scan
• TAP Controller
• IEEE 1149.1
• IEEE 1500

Roles and Responsibilities
Under direct supervision, performs engineering work and applied research, development, and design of new Integrated Chips. Work includes Architectural Design, Logic Design, Circuit Design, Physical Design, Verification, Fabrication, Packaging of Chips.