John W Pursel

Title: Innovations by John W Pursel

Introduction

John W Pursel is a notable inventor based in Sunnyvale, CA. He has made significant contributions to the field of semiconductor technology, holding 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest patents is a mechanism that holds down packages. This invention involves an arrangement and method for pressing down a semiconductor package arrangement with a controlled down-force. The design features a pressure bar on a fulcrum, biased by a spring to apply consistent pressure on the semiconductor package. An adjustment device allows for precise control over the pressure applied, ensuring consistency during electrical characterization testing and eliminating the need for manual holding.

Another significant patent is a chip scale electrical test fixture with an isolation plate having an angled test hole. This test fixture grounds all solder balls of a ball grid array (BGA) of a chip scale package, except for a selected subset, to facilitate electrical characterization. The isolation plate includes a hole with an angled sidewall, providing increased clearance for a fixed compliant probe to land on the solder balls during testing.

Career Highlights

John W Pursel is currently employed at Advanced Micro Devices Corporation, where he continues to innovate in semiconductor technology. His work has contributed to advancements in the testing and characterization of semiconductor packages.

Collaborations

Throughout his career, John has collaborated with talented individuals such as John Huan Vu and Nhon T Do. These collaborations have further enriched his work and contributed to the success of various projects.

Conclusion

John W Pursel's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor in the field. His innovative solutions continue to impact the industry positively.