Senior Signal Integrity Specialist

2 weeks ago

Mountain View, California, United States Lightmatter Full time
Position Overview

Lightmatter is at the forefront of developing innovative chips that facilitate extreme-scale artificial intelligence computing clusters. We are seeking a Senior Signal Integrity Engineer who is passionate about innovation and eager to tackle complex technical challenges.

Key Responsibilities
  • Design and execute signal integrity strategies for high-speed interfaces, including PCIe and SerDes.
  • Conduct signal integrity analyses and simulations to assess and enhance design decisions, focusing on eye diagram evaluations, jitter assessments, and equalization methodologies.
  • Collaborate with interdisciplinary teams, including hardware designers, PCB layout engineers, and system architects, to offer signal integrity insights and support throughout the product development process.
  • Work in close partnership with hardware designers to ensure optimal impedance matching, termination, and routing practices for high-speed SerDes interfaces, while considering design constraints and manufacturability.
  • Perform comprehensive signal integrity measurements and characterizations using laboratory equipment such as oscilloscopes, network analyzers, TDRs, and VNAs to validate design performance and troubleshoot potential issues.
  • Engage in signal integrity design reviews, providing technical expertise and recommendations to guarantee superior signal integrity performance and compliance with design specifications.
  • Analyze and address electromagnetic interference (EMI) and electromagnetic compatibility (EMC) challenges related to SERDES interfaces, ensuring adherence to industry standards and regulations.
  • Document and communicate findings from signal integrity analyses, design guidelines, and recommendations to relevant stakeholders.
Qualifications
  • Bachelor's degree in Electrical Engineering or a related field.
  • A minimum of 8 years of relevant industry experience in signal integrity analysis for high-speed interfaces (112G SerDes, PCIe Gen5).
  • Proficient in simulation and analysis tools for signal integrity, including Ansys HFSS and Keysight ADS.
  • Strong understanding of transmission line theory, impedance matching, and equalization techniques.
  • Familiarity with signaling protocols for high-speed interfaces, including PCIe and SerDes.
  • Experience with PCB design and layout considerations for high-speed interfaces, including layer stack-up, routing, and via design.
  • Knowledge of electromagnetic compatibility (EMC) and electromagnetic interference (EMI) mitigation techniques.
  • Skilled in using laboratory equipment for signal measurement and characterization, such as oscilloscopes, network analyzers, TDRs, and VNAs.
  • Familiarity with industry-standard simulation models and methodologies for SERDES analysis, such as IBIS-AMI.
  • Ability to write scripts to automate simulation processes (Python, JavaScript, Ocean scripts, or Skill).
Preferred Qualifications
  • Strong analytical and debugging skills for signal integrity-related challenges, including eye diagram analysis, jitter analysis, and equalization techniques.
  • Experience with DDR and HBM integration.
  • Understanding of CMOS process technologies and their implications on signal integrity.
  • Demonstrated excellent communication skills and ability to work effectively in cross-functional teams.
  • Capability to work independently and manage projects with minimal supervision.
Benefits

We offer a comprehensive benefits package that includes:

  • Health Care Plan (Medical, Dental & Vision)
  • 401k matching
  • Life Insurance (Basic, Voluntary & AD&D)
  • Generous Time Off (Vacation, Sick & Public Holidays)
  • Paid Family Leave
  • Short Term & Long Term Disability
  • Training & Development
  • Flexible, hybrid workplace model
  • Stock Option Plan

The compensation for this role ranges from $175,000 to $210,000, based on location, experience, educational background, and market data.

Lightmatter is committed to fostering a diverse and inclusive workplace, ensuring equal opportunity for all candidates regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected statuses as required by applicable law.

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