DFT Lead

DFT with Cadence Tool:

Key Responsibilities

DFT Architecture & Planning

• Define and develop DFT strategy for complex ASIC and SoC designs.
• Create DFT specifications and test architecture documents.
• Drive DFT implementation activities from RTL through tapeout.
• Collaborate with RTL, Design Verification, Physical Design, STA, and Silicon Validation teams.
• Ensure high fault coverage while meeting PPA requirements.
• Participate in architecture reviews and DFT signoff activities.

Scan Insertion & Test Compression

• Design and implement scan architecture.
• Perform scan chain insertion and optimization.
• Implement scan compression methodologies.
• Analyze and debug scan chain violations.
• Support scan-chain reordering and physical-aware DFT implementation.
• Optimize test time and tester memory utilization.

Key Areas

• Scan Insertion
• Scan Stitching
• Scan Partitioning
• Test Compression
• EDT Architecture
• Scan Reordering
• Scan Verification

ATPG & Fault Coverage

• Generate ATPG patterns for production testing.
• Achieve targeted fault coverage goals.
• Perform fault simulation and coverage analysis.
• Debug ATPG violations and improve testability.
• Optimize pattern count and tester efficiency.

ATPG Activities

• Stuck-at ATPG
• Transition ATPG
• Path Delay ATPG
• Cell-Aware ATPG
• Bridging Fault Analysis
• Fault Grading
• Fault Simulation
• Pattern Debugging

MBIST Implementation

• Develop and integrate MBIST architecture for embedded memories.
• Support memory repair and redundancy management.
• Implement memory diagnosis and repair solutions.
• Verify MBIST functionality and coverage.

Expertise Required

• MBIST Architecture
• BISR
• BIRA
• Memory Repair Flows
• Memory Diagnosis
• March Algorithms
• Embedded Memory Testing

JTAG & Boundary Scan

• Implement and verify JTAG architecture.
• Integrate TAP controllers and boundary scan logic.
• Support chip-level connectivity testing.
• Debug JTAG and boundary scan issues.

Standards Knowledge

• IEEE 1149.1
• IEEE 1500
• Boundary Scan Architecture
• TAP Controller Implementation

DFT Verification

• Develop DFT verification plans.
• Verify Scan, MBIST, and JTAG functionality.
• Support RTL and Gate-Level verification.
• Create and debug DFT testbenches.
• Validate ATPG patterns using simulation.

Verification Tasks

• RTL Verification
• DFT Verification
• ATPG Validation
• GLS Verification
• Pattern Verification
• Regression Execution

Physical Design & Timing Interaction

• Collaborate with PD teams for DFT-aware implementation.
• Resolve scan-related timing issues.
• Support scan-chain reordering and timing optimization.
• Ensure timing closure of DFT logic.
• Support low-power DFT integration.

Silicon Bring-up & Yield Enhancement

• Support silicon debug activities.
• Analyze tester failures and manufacturing issues.
• Work with Product Engineering and ATE teams.
• Improve yield and test coverage through diagnostics.
• Support volume production readiness.

Mandatory Technical Skills

Cadence DFT Tool Expertise

Strong experience with:

DFT Implementation

• Cadence Modus DFT Software Solution
• Cadence Modus Test Compression
• Cadence Modus ATPG
• Cadence Modus Diagnosis
• Cadence Modus BIST

Verification & Simulation

• Cadence Xcelium
• SimVision Debug Environment

Signoff & Integration

• Cadence JasperGold (Preferred)
• Cadence Conformal LEC
• Cadence Innovus Awareness (Preferred)

Core DFT Competencies

Candidates should have strong experience in:

DFT Architecture

Scan Design

Scan Compression

ATPG

Fault Coverage Analysis

MBIST

JTAG

Boundary Scan

DFT Verification

GLS

Silicon Debug

Yield Analysis

Pattern Validation

Test Coverage Improvement

Production Test Readiness