Focus on cellular and GNSS for Surface phone and tablet devices. Work includes R&D of NR FR2 mmWave integration; RF signal integrity simulation, circuit design with matching optimization;product bring up and bench conformance tests and debugging for GNSS and cellular sub technologies.

Focus on wireless products• Hardware design verification and bench testing: o Developed product tests; including ATE programming with Python / VISA / SCPI in compliance with wireless standards o PCB board schematic designs/verifications o Interfaced with customers and multidisciplinary teams to mature and verify product requirements o Designed simulations and characterization methodologies for new products• Generated product and customer support documents; including application notes and user guides• Provided engineering support for customers: debug activities and Customer Return Analyses• Conducted product and technical training for regional Sales and FAE teams

• Developed and maintained circuit design test plans, procedures, and hardware• Generated software tools and automated test solutions with LabView and VBA• Designed over PVT bench level tests for PCB boards• Optimized existing ATE test procedures, hardware, and software• Interfaced with customers and multidisciplinary teams to develop product requirements• Created tools to perform product quality and yield analyses: post-processing massive ATE data sets• Compiled data and results into reports and regularly communicated findings through presentations

Teaching assistant for class Switch-Capacitor Analog Circuit. Duties include helping student with technical issues, academic problems and evaluting the projects results. Projects include:- Simulation of 2nd Order PLL Circuit Function;- Construction and VerilogA Simulation of 2nd Order Continuous Sigma Delta A/D Converter;- Design of Fully Differential 2-Stage Opamp and Fully Differential 2-Stage OTA;- Design of 5th Order Lowpass Butterworth Filter;- Design of a Real Switched-Capacitor Filter in a Cordless Phone IC Application;- Design of a Switch-Capacitor Charge-Pump DC/DC Converter.

Book/Book Chapter reviewer for Professor Hongjiang Song at ASU.- The Art of VLSI Opamp Circuit Design- VLSI Modulation Circuits

Grader for class Circuit I taught by Dr. Hongyu Yu