Lead design and test of SOC (system on chip) chips for medical implants, with synthesized digital control coder-decoder unit, RF communication (OOK, ASK), low power data converters DAC and ADCs, neural signal detection, Power management DC-DC converter, low power PLLs etc. Lead the integration of the digital and analog blocks.Lead design of ASK RF detection chip of the headpiece communication unit. Management of the design (analog and digital), characterization, test, back end packaging, chip supply chain. system development of medical implant and control system.Invented RF impedance test method for detecting the coil consistency and defects.Developed test methods for quality control.In charge of the reliability issues of electronics and implant feed-throughs.

High speed CMOS and BiCMOS circuit design above 10GHz.High speed comparators, drivers, DAC (9bit, 12Gbps), delay lines, oscillators, DLL, PLL in Serdes, DDR3Pin electronics designHigh speed board level transmission line and data integrityAnalog design of opamp based circuits, test circuits like PMU design, Analog pin power supply and pin power test unit design