These patents were my inventions that I made while working at Motorola, Freescale, National Semiconductor and Texas Instruments.

I worked as an Electrical Design Engineer in the circuit design and development of radios, pagers, microprocessor controlled radio receivers, computer aided design software and tools, maskap recognition and DRC checking of integrated circuit designs, micro-machined polysilicon sensors, analog circuit designs for automotive electronics, consumer flatscreen backlight drivers, switching regulators using hysteritic control, pulse-width control, buck, boost and buck-boost designs, HV power electronics, automotive circuits for relay drivers, switches, regulators, transceivers for SPI, CAN, air-bag deployment, accelerometer sensor, anti-lock braking controls, fault detection circuits, AC-DC power converters, PFC circuits, high efficiency power conversion, silicon based MEMS oscillator.

In my day to day work I worked with marketing, semiconductor IC design, simulation, development, test, product verification and application validation teams as well as quality control, failure analysis and on-going production support.  I witnessed the grow of microprocessor and memory integration into products, the use of custom ASICs, custom analog, the growth of simulation tools and software languages.  Till the end of my career, I found many good uses for the old standard Tektronix 575 Curve Tracer.

I worked with and supported the development of many key semiconductor processes including I2L, Mosaic 1.5, Smartmos 2.5, 3, 5, 7,  ABCD5HV, ABCD6, VHVIC, TSMC250, TSMC120, GF BiCMOS SiGE.