This inventor holds 2 USPTO granted patents. Top assignee: International Business Machines Corporation. Active years: 1993-1997.
Company Filing History:
Years Active: 1993-1997
Title: Innovations of David A Sunderland
Introduction
David A Sunderland is a notable inventor based in Hopewell Junction, NY (US). He has made significant contributions to the field of semiconductor technology, particularly in the development of high-performance transistors. With a total of 2 patents to his name, Sunderland's work has had a considerable impact on the industry.
Latest Patents
Sunderland's latest patents include a method for making heterojunction bipolar transistors with self-aligned features. This innovative approach allows for the creation of high gain, high frequency transistors by utilizing a combination of a moderately doped retrograde emitter and a collector formed through self-aligned implantation. This design enables continued base width scaling while ensuring high current capability, limiting the electric field at the emitter-base junction, and enhancing breakdown voltage. As a result, cut-off frequencies on the order of 100 GHz can be achieved in a transistor with a 30 nm base width in a SiGe device.
Another significant patent is the image reversal process for self-aligned implants in planar structures. This process employs a mask opening and plug to facilitate one implant in the mask opening, another self-aligned implant in the surrounding region, and a self-aligned electrode formed within the opening. These advancements showcase Sunderland's expertise in semiconductor fabrication techniques.
Career Highlights
David A Sunderland is currently employed at International Business Machines Corporation (IBM), where he continues to push the boundaries of technology. His work at IBM has allowed him to collaborate with some of the brightest minds in the industry, contributing to groundbreaking innovations.
Collaborations
Sunderland has worked alongside talented colleagues such as David C Ahlgren and Mary Joseph Saccamango. Their collaborative efforts have further enhanced the quality and impact of their research and development projects.
Conclusion
David A Sunderland's contributions to the field of semiconductor technology are noteworthy. His innovative patents and collaborations at IBM highlight his commitment to advancing technology and improving performance in electronic devices. His work continues to influence the industry and inspire future innovations.