Memory Senior Modeling Engineer

Location: Danang, vn

Company Description

The Memory Senior Modeling Engineer owns the generation, validation, and delivery of the complete set of memory views and models for Silvaco’s memory IP portfolio. As a senior technical contributor within the Memory Design team, the role ensures that every consumer of memory deliverables — Physical Design, Static Timing, DFT, and design teams — is supported by accurate, silicon-correlated, and on-time models, while continuously improving the modeling and quality-assurance methodology.

Job Description

Key Roles & Responsibilities

Memory View & Model Generation

• Develop, generate, and maintain the full set of memory views/models for the SRAM, ROM, and Register-File portfolio, ensuring correctness, completeness, and on-time delivery to consumer teams.
• Liberty Models: validate timing & power Liberty (.lib) models (NLDM/CCS) across all required PVT corners, ensuring correlation with SPICE/silicon and consistency with the memory specification.
• Memory Verilog Model: build behavioral Verilog/SystemVerilog models for memory instances and compilers, matching the functional, timing, and power-aware behavior of the hardware.

Model Verification

• Verilog Model Testing: set up and run model verification/regression environments, define test cases and equivalence checks to guarantee the Verilog models match specification and golden behavior.
• Debug model mismatches and drive root-cause analysis together with the design and CAD teams.

Design-for-Test (DFT)

• Tessent Description: create and validate memory descriptions for Siemens/Mentor Tessent to enable MBIST insertion, repair, and test of the memory blocks.
• TetraMAX: generate and debug ATPG patterns and fault coverage for memory and surrounding logic using Synopsys TetraMAX.
• FastScan: build scan/ATPG flows and analyze test coverage using Siemens/Mentor FastScan, aligning with the overall DFT strategy.

Automation & Methodology

• Automate the model-generation and QA flows (Perl/Python/TCL/Shell) and integrate them within the memory compiler / view-generation environment to improve robustness and turnaround time.
• Introduce and implement methodology improvements that enhance model quality and overall team efficiency.

Collaboration & Support

• Work in close cooperation with Memory Design, DFT, Physical Design, and STA teams to deliver on time and according to required specifications.
• Generate the required documentation, support consumers of the models, and contribute to the validation and debugging of fabricated silicon.
• Provide mentorship and technical guidance to junior modeling engineers.

Qualifications

Essential Requirements

• BS/MS in Electronics Engineering, Telecommunications, Microelectronics, Computer Engineering, Physics, or a related field.
• Minimum 4 years of hands-on experience in memory modeling, or DFT for IC/IP design.
• Liberty (.lib) timing & power model generation and validation (NLDM/CCS).
• Memory behavioral Verilog/SystemVerilog model development.
• Verilog model testing, verification, and regression methodology.
• Tessent memory description and MBIST flows.
• Synopsys TetraMAX ATPG.
• Siemens/Mentor FastScan ATPG / scan.
• Strong scripting/programming skills (Perl, Python, TCL, Shell) on Unix/Linux.
• English Language Proficiency: Fluency, written and verbal.
• Strong communication, analytical, and problem-solving skills.

Desirable Requirements

• Master's degree in Electronics / Microelectronics Engineering.
• Hands-on experience with memory compilers and view-generation flows.
• Familiarity with CCS/NLDM characterization, SPICE correlation, and standard views (LEF, GDS, CDL).
• Understanding of memory architectures (SRAM/ROM/Register File) and STA concepts.
• Experience with advanced FinFET process nodes.
• Knowledge of functional safety (ISO 26262) and quality (ISO 9001) processes.