Location History:
- Yorktown Heights, NY (US) (1991)
- Fremont, CA (US) (2004)
- Hayward, CA (US) (1999 - 2005)
Company Filing History:
4 out of 164,197 
4 out of 61 
2 out of 13,713 
Years Active: 1991-2005
Title: The Innovations of Stephen A. Rishton
Introduction
Stephen A. Rishton is a notable inventor based in Hayward, CA (US). He has made significant contributions to the field of technology, holding a total of 10 patents. His work primarily focuses on advancements in semiconductor technology and photolithography.
Latest Patents
Among his latest patents is the "Scalable MOS Field Effect Transistor." This invention describes a field effect transistor and a method for making it, incorporating self-aligned source and drain contacts with Schottky metal-to-semiconductor junctions. It also features a T-shaped gate and utilizes highly doped semiconductor material for the source and drain contacts, which differ from the channel material to provide etch selectivity. Another notable patent is the "Technique for Writing with a Raster Scanned Beam." This technique generates patterns with a raster scanned beam in a photolithographic system that employs a multiple blank position flash cycle. The method involves deflecting a beam to create shadows of apertures that impinge upon different regions of a stop, enhancing the efficiency of the flash cycle.
Career Highlights
Stephen has worked with prominent companies such as IBM and Etec Systems, Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies.
Collaborations
Throughout his career, Stephen has collaborated with talented individuals, including Khalid EzzEldin Ismail and Katherine Lynn Saenger. These partnerships have fostered innovation and creativity in his projects.
Conclusion
Stephen A. Rishton is a distinguished inventor whose work has significantly impacted the technology sector. His patents reflect his expertise and commitment to advancing semiconductor technology and photolithography.