Clarence John Dunnrowicz

Title: The Innovations of Clarence John Dunnrowicz

Introduction

Clarence John Dunnrowicz is a notable inventor based in Santa Cruz, CA. He has made significant contributions to the field of electronics, particularly in the development of heterojunction bipolar transistors. With a total of 5 patents to his name, Dunnrowicz has demonstrated a commitment to advancing technology.

Latest Patents

Dunnrowicz's latest patents include innovative designs aimed at improving the safe-operating area (SOA) of heterojunction bipolar transistors. One of his patents focuses on a heterojunction bipolar transistor having a non-uniformly doped collector. This design enhances the SOA by providing a collector region with graded doping, which reduces Kirk effect induced breakdown when collector current increases. Another significant patent involves a heterojunction bipolar transistor that incorporates wide bandgap material in the collector. This insertion layer increases the breakdown field at the collector-subcollector junction, thereby enhancing the Kirk effect induced breakdown voltage.

Career Highlights

Throughout his career, Dunnrowicz has worked with prominent companies such as Xerox Corporation and EIC Corporation. His experience in these organizations has contributed to his expertise in the field of electronics and semiconductor technology.

Collaborations

Dunnrowicz has collaborated with notable individuals in his field, including Linda T. Romano and David P. Bour. These collaborations have likely enriched his work and contributed to his innovative patents.

Conclusion

Clarence John Dunnrowicz is a distinguished inventor whose work in heterojunction bipolar transistors has made a significant impact on the electronics industry. His innovative patents and collaborations reflect his dedication to advancing technology and improving electronic devices.