Principal HW Development Engr

2 months ago


Bengaluru, India Infinera Full time

Description

Responsibilities

Perform SI analysis, measurement, and debug tasks in the development of advanced high density printed circuit board (PCB) for Infinera’s next generation coherent PIC (Photonic Integrated Circuit) and DSP modules Design, simulate, analyze, and characterize electrical performance of the above electronic circuits Write with clarity detailed HW specifications, SI simulation and measurement test plans, and test reports Drive PCB placement and layout for robust SI performance Design, layout, and characterize high speed Integrated SerDes circuits in various channel environments spanning multiple PCBs and high speed connectors Evaluate SerDes interconnect PHY topologies, transmitter and receiver capabilities, parameter tuning, and related clocking / power supply considerations to meet critical performance and robustness objectives Design with high emphasis on noise, jitter, and signal crosstalk suppression Design with high emphasis on compact size/miniaturization appropriate for dense boards with multiple optical/electronic channels in parallel. Drive supplier collaborations to optimize for SI performance. Suppliers would include both external component vendors and internal (INFN ASICs). Work with EMI compliance engineers and define PCB design rules for EMI

Required Experience and Qualification

Expert level skill in Ansys HFSS EM analysis for 10-100GHz channels. Deep understanding of transmission line theory 7+ years of direct experience with PCB and package geometry optimization with EM tools Create PCB routing guideline based on the PCB geometry optimization and channel simulation. Experience in high speed channel measurement with VNA and TDR, and the technique of de-embedding test fixture. Experience in 56Gbps SerDes design and debug, understanding of transmitter and receiver equalization, CDR behavior, modeling, and link training algorithms. M.S. degree in electrical engineering or physics with minimum 10 years of industrial experience in signal integrity.

Preferred Experience and Qualification

Experience in defining PCB stack-up, material selection and trade-offs for 112Gbps channels Experience in SerDes channel simulation at 112Gbps data rate with Keysight/Ansys tools. Experience in methodologies to achieve good correlation between simulation and measurement for PCB channels at 112Gbps or higher. Experience in component selection/evaluation for 112Gbps SerDes including but not limited to SerDes IP, re-timer/repeater, connectors, DC blocking caps, and etc. Experience in PCB design guideline for EMI.  Experience in power integrity simulations and lab measurement verification Experience in high speed backplane design desirable

Infinera is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, sex, age, status as a protected veteran, or status as a qualified individual with disability. EEO Employer/Vet/Disabled. 

(Supplement No. 1 to Part 740, Title 15)



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