Job Description

**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)

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