Sr. Analog Physical Design Engineer

OMNIVISION•Santa Clara, CA

About The Position

The Sr. Analog Physical Design Engineer will be responsible for detailed column ADC circuit design, with a primary focus on column layout design. This role involves collaborating with other column ADC designers to optimize performance while minimizing silicon area. Key duties include conducting cross-product column ADC layout comparisons, IP layout development and maintenance, and performing RCX extraction and parasitic analysis to improve ADC performance and image quality. The engineer will also conduct image sensor pixel array and column ADC supply analysis, optimize chip floorplan and power routing, and study new process design rules to provide physical design guidelines. Debugging and developing Calibre svrf files, applying SKILL scripts for productivity, and performing full-custom analog IC layout and physical verification using industry-standard tools are also core responsibilities. The position requires leading top-level layout implementation from floorplan through GDS tape-out and developing and maintaining layout methodologies and documentation.

Requirements

Master’s degree or foreign equivalent degree in Electrical Engineering, Electronics Engineering, or a closely related field.
2 years of experience in CMOS image sensor IC layout design.
Semiconductor process and device fundamentals, with expertise in addressing advanced technology nodes challenges.
Experience in image sensor manufacturing technology, performance metrics, and system-level integration in camera applications.
Experience with industry standard EDA tools, such as Cadence Virtuoso, PVS, Spectre, Innovus, Skipper, Siemens Calibre, Synopsys Hspice, Design Compiler, IC Compiler, PrimeTime, Laker and P2P.
Front-end and back-end ASIC design flows.
Experience in stacked chip process flow and related design considerations.
Skills in interpreting physical verification reports (DRC, DFM, ERC, LVS, etc.) and understanding SVRF rule files.
Advanced layout skills such as common-centroid layouts, symmetrical layouts, use of dummy devices, matching, ESD, latch-up, antenna effects, etc.
Understanding of layout impact on device matching, noise coupling, guard-ring, electromigration, isolation and IR drop.
Developing CAD flow automation using scripting languages like Perl, Skill, and Tcl.
Expertise in low-power, high-precision, high speed analog layout design techniques.
Solving crosstalk challenges between adjacent column ADCs in image sensor circuits.

Responsibilities

Work on detailed column ADC circuit design, with a focus on column layout design.
Collaborate with other column ADC designers to optimize column ADC’s performance with minimum silicon area.
Conduct cross products column ADC layout comparison and IP layout development and maintenance.
Perform RCX extraction of column circuit and critical signals parasitic analysis and propose optimized design to improve column ADC performance and image quality.
Conduct image sensor pixel array and column ADC supply analysis using Totem or other methodologies, including worst case P2P resistor extraction, and optimize chip floorplan and power routing.
Study design rules for new processes and provide physical design guidelines to the design team.
Debug and develop Calibre svrf files when needed.
Apply SKILL script to improve productivity and design robustness.
Responsible for full-custom analog IC layout and physical verification (DRC/ANT/DFM/ERC/LVS) using industry-standard tools like Cadence Virtuoso and Calibre.
Execute top-level layout and coordinate layout resources and schedules for all modules.
Perform floor planning and placements including pad locations, power/clock domain planning, ESD, integration of AMS and digital blocks, and chip-level routing strategy.
Lead top-level implementation from floorplan through GDS tape-out.
Develop and maintain layout methodologies and documentation to ensure efficient and consistent design practices.