Signal Integrity Engineer

FormFactor Inc.; Livermore (CA); Hybrid; USD 134,056 - 166,100; Full time

Job summary

FormFactor, Inc. is seeking a Signal Integrity Engineer to enhance SI/PI performance across PCB, package, and interconnect designs. You will measure, characterize, and compare lab data with simulations to refine models and future designs.

The role involves designing power distribution networks for high‑density I/O, and guiding layout decisions to reduce reflections, crosstalk, and EMI. Prior Cadence Allegro and RF probe‑measurement experience is required.

Qualifications

• Master’s degree in Electrical Engineering or related field.
• 2 years of experience as Signal Integrity Engineer or related occupation.
• Experience with transmission lines, impedance control, and stack‑up design.
• Ability to measure s‑parameters on PCBs and extract SI/PI metrics.
• Proficiency with Cadence Allegro and RF instrumentation.

Responsibilities

• Improve Signal Integrity and Power Integrity performances and complete production design analysis.
• Perform lab measurements and correlate to simulations to refine models.
• Model and design power distribution and high‑density I/O on PCB, packages, connectors, and probe cards.
• Provide documentation and training to the Design Organization on SI/PI constraints and solutions.

Skills

Transmission line theory

Impedance control

Stack‑up design

S-parameter analysis

Education

Master’s degree in Electrical Engineering

Tools

Cadence Allegro

Vector Network Analyzer

Time Domain Reflectometer

RF measurement probes

Job description

Job Description

Employer: FormFactor, Inc.

Position: Signal Integrity Engineer

Duties: Improve Signal Integrity and Power Integrity (SI/PI) performances, and measure, characterize and complete production design analysis. Perform lab measurements and correlate to simulations to refine future models. Model and design power distribution and high-density input and outputs (I/O) on Printed Circuit Boards (PCB), packages, connectors, and probe cards with respect to parameters such as reflections, bandwidth, and crosstalk. Provide, document, and train the Design Organization on design constraints, specifications and solutions to PCB and package layout based on Signal Integrity. Support the probe card development within the Design Group by improving the Design Organizations and understanding Signal Integrity fundamentals resulting in shorter cycle time and higher quality product.

Education Required: Master’s degree or foreign equivalent in Electrical Engineering or related field.

Experience Required: 2 years of experience as Signal Integrity Engineer or related occupation.

Special Requirements: Must have at least 1 year of prior work experience in each of the following:

• Transmission line theory, impedance control, and stack-up design.
• Analyzing board files using Cadence Allegro to ensure optimal SI/PI performance.
• Measuring s-parameters of PCBs using Vector Network Analyzer.
• Characterizing performance of a trace in a PCB using a Time Domain Reflectometer.
• Performing and proper handling of RF measurement micro probes to measure PCBs.
• Analyzing s-parameters and TDR data to characterize PCBs.
• Layout guidelines for minimizing crosstalk, reflections, and EMI.
• Some telecommuting permitted (hybrid).

Salary: $134,056 to $166,100 per year

Worksite: 7005 Southfront Road, Livermore, CA 94551

Equal Employment Opportunity Statement

FormFactor is an equal opportunity employer. FormFactor complies with all national, state, and local laws that seek to promote equal opportunities for any applicant or employee without regard to age, race, color, gender, gender identity/expression, national origin, sexual orientation, religion, disability, marital status, pregnancy or related condition, military service, or any other legally protected characteristics. These protections apply to all aspects of employment, including but not limited to, recruitment, hiring, training, promotions, and compensation.