Location History:
- Los Angeles, CA (US) (1987 - 1988)
- Newbury Park, CA (US) (1992)
Company Filing History:
3 out of 4,197 
1 out of 832,843 Years Active: 1987-1992
Title: The Innovations of Marion D Clark
Introduction
Marion D Clark is a notable inventor based in Newbury Park, California. She has made significant contributions to the field of electronics, particularly in the development of advanced transistor technologies. With a total of 4 patents to her name, her work has had a lasting impact on the industry.
Latest Patents
One of her latest patents is for a self-aligned, planar heterojunction bipolar transistor. This innovation involves forming a heterojunction bipolar transistor (HBT) with self-aligned base-emitter and base-collector junctions. The process includes creating a two-level mask over a doped base layer, sequentially forming openings in registration through the two mask layers, and using these openings to define the collector and emitter regions. A buried conductive layer, established by a dopant implant, provides electrical contact to the collector region. This design minimizes parasitic capacitances by implanting the collector and buried conductive layers into a semi-insulating substrate, ensuring that only the active junction regions overlap.
Career Highlights
Throughout her career, Marion has worked with prominent companies, including Hughes Aircraft Company. Her expertise in electronics and semiconductor technology has positioned her as a key figure in her field.
Collaborations
Marion has collaborated with notable individuals such as William E Stanchina and K Vaidyanathan. These partnerships have contributed to her innovative work and advancements in technology.
Conclusion
Marion D Clark's contributions to the field of electronics, particularly through her patents and collaborations, highlight her role as a significant inventor. Her work continues to influence the development of advanced technologies in the industry.