This inventor holds 3 USPTO granted patents. Top assignee: National Semiconductor Corporation. Active years: 1991-1993.
Company Filing History:
Years Active: 1991-1993
Title: Bancherd DeLong: Innovator in Semiconductor Technology
Introduction
Bancherd DeLong is a notable inventor based in Puyallup, WA (US). He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work primarily focuses on improving the performance and efficiency of bipolar transistors and Schottky barrier diodes.
Latest Patents
One of his latest patents is a method of fabricating Schottky barrier diodes. This innovation involves forming a Schottky diode with a layer of intrinsic polysilicon that separates a metal silicide layer from an n conductivity type active region. This structure eliminates the need for a process step that opens a window in the intrinsic polysilicon layer, thereby reducing the surface area required for the formation of a Schottky diode compared to previous devices. Additionally, the Schottky diode can be integrated into an overall process for forming an integrated circuit, allowing it to be positioned in parallel across the collector/base junction of a bipolar transistor to create a Schottky barrier diode-clamped transistor.
Another significant patent focuses on reducing the base resistance of a bipolar junction transistor (BJT) through the formation of a self-aligned silicide in the single-crystal region of the extrinsic base. This method effectively eliminates the polysilicon to single-crystal contact resistance and shunts the resistance of the single-crystal extrinsic base region. The process involves selectively removing oxide from the sidewall of the polysilicon local interconnection prior to silicide formation, resulting in significant reductions in interconnection resistance, particularly for sub-micron geometries.
Career Highlights
Bancherd DeLong has had a distinguished career at National Semiconductor Corporation, where he has contributed to various innovative projects. His expertise in semiconductor fabrication techniques has positioned him as a key player in the development of advanced electronic components.
Collaborations
Throughout his career, Bancherd has collaborated with notable colleagues, including George E. Ganschow and Christopher S. Blair. These collaborations have further enhanced the impact of his work in the semiconductor industry.
Conclusion
Bancherd DeLong's contributions to semiconductor technology through his patents and work at National Semiconductor Corporation highlight his role as an influential inventor. His innovations continue to shape the future of electronic devices and improve their performance.