Laurence M Szendrei

Title: The Innovations of Laurence M Szendrei

Introduction

Laurence M Szendrei is a notable inventor based in Gray, ME (US). He has made significant contributions to the field of semiconductor technology, particularly in the development of bipolar junction transistors. With a total of 2 patents to his name, Szendrei's work has had a lasting impact on the industry.

Latest Patents

Szendrei's latest patents include a "Single polysilicon emitter bipolar junction transistor processing technique using cumulative photo resist application and patterning." This innovative process allows for the formation of a bipolar transistor where the doping implantation of the extrinsic base regions does not affect the emitter doping levels. The technique involves not removing the photoresist layer used to define the poly emitter contact, ensuring that the base implantation does not interfere with the emitter's doping levels.

Another significant patent is the "Quasi self-aligned single polysilicon bipolar active device with intentional emitter window undercut." This invention describes an emitter stack for a quasi-self-aligned bipolar transistor, where two layers over the emitter of a silicon substrate are windowed to undercut the top layer, exposing the substrate material. This design allows the emitter polysilicon structure to conformally extend into the undercut region, thereby widening the emitter region and reducing the total base resistance of the transistor.

Career Highlights

Szendrei has been associated with Fairchild Semiconductor Corporation, a leading company in the semiconductor industry. His work at Fairchild has allowed him to explore and develop advanced technologies that enhance the performance of electronic devices.

Collaborations

Throughout his career, Szendrei has collaborated with notable colleagues such as Steven M Leibiger and Mark A Doyle. These collaborations have contributed to the advancement of semiconductor technologies and have fostered innovation within the field.

Conclusion

Laurence M Szendrei's contributions to semiconductor technology through his patents and work at Fairchild Semiconductor Corporation highlight his role as a significant inventor in the industry. His innovative techniques in bipolar junction transistors continue to influence the development of electronic devices today.