System Signal Integrity Engineer

* ** Support high data rate Ser Des applications - up to 112

Gbps 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 (Ser Des) 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, Ser Des TX-RX links**  +
** Jitter sensitivity measurement and analysis for Ser Des 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.**
- ** BS +8yrs, MS +6 yrs or PhD +3yrs Electrical Engineering or Physics and  years experience in one or more of:**
* ** Signal/Power integrity for high-speed digital applications**
* ** Electromagnetic transmission line theory**
* ** Microwave theory**
* ** Numerical Field solver theory**
* ** Power integrity**
* ** IC package design**
* ** Photonics*
* #J-18808-Ljbffr