System Signal and Power Integrity Engineer

**This position can be located in San Jose, CA or Fort Collins, CO**

Responsibilities

Support high data rate SerDes applications - up to 112Gbps NRZ and 224G PAM4 systems

System level Signal and Power Integrity design trade-offs and debug

Collaborate with package, PCB, and silicon designers to complete measurement-simulation correlation projects

Develop models with electromagnetic field solvers: primarily with Ansys HFSS and electronic suite.

Ability to understand laminate design and fabrication techniques and limitations for both package and PCB designs.

Evaluate system, PCB and package material and connector solutions for future designs.

Simulate schematic models and environments within Keysight ADS.

Ensure and know trade-offs for the accuracy of models (3D/2.5D/2D) used for design simulations.

Perform and develop VNA/TDR (50GHz+) measurement techniques and correlate with models and simulations.

Provide feedback and learnings from measurement-simulation correlation investigations to improve best practices for modeling and simulations.

Capture high fidelity lab measurements to be used for correlation and debug purposes

Experience with sampling and real-time oscilloscopes, spectrum analyzers, and optical oscilloscopes.

Understand and apply:

High speed data communications

Transmission-line and electromagnetic-field theory

Numerical analysis

VNA/TDR measurements

Bit-by-bit and Statistical simulators for serial data (SerDes) links

Insertion loss, return loss, crosstalk, BER, jitter, and statistical eye diagrams

Work in either time domain or frequency domain

Phase noise analysis as it applies to PLL’s, reference clocks, SerDes TX-RX links

Jitter sensitivity measurement and analysis for SerDes IP

Organize and manage multiple projects

Develop, clearly and effectively document, and track project plans

Effectively communicate complex concepts in conversation, presentations and written documents

Determine and document applicable requirements for ASIC package and PCB designs, drawing from industry standards, customer requirements, and/or APD Broadcom’s internal performance goals

Collaborate with Package and PCB Engineers to fulfill System SI requirements, while balancing objectives (reliability, cost, complexity, etc.)

Pre-layout and post-layout modeling and simulation to support package and PCB engineering for signal integrity

Document and deliver SI models with supporting documentation to customer and internal engineers

Support customer analysis and debug efforts related to our deliverables

Understanding of optical/electrical engine concepts and theory of operation, CWDM, OMA, etc..

Familiarity with optical channel impairments such as chromatic dispersion (CD) and four-wave mixing (FWM).

Power Integrity Concepts: PDN impedance analysis and design, ultra-low impedance measurements, understanding of SMT capacitor performance metrics, use of CPA and/or SI-Wave for PDN simulations.

Qualifications

BS +8yrs, MS +6 yrs or PhD +3yrs Electrical Engineering or Physics and years' experience in one or more of:

Signal integrity for high-speed digital applications

Electromagnetic transmission line theory

Microwave theory

Numerical Field solver theory

Power integrity

IC package design

Photonics

Tools

EM modeling (Ansys HFSS/SIWave/Q3D and Polar)

Circuit simulation tools (Keysight ADS)

Matlab (desired)

Cadence APD/Allegro (desired)

Other layout tools (desired)

Linux (desired)

Keysight AEL (desired)

Perl (desired)