This inventor holds 8 USPTO granted patents. Top assignee: National Semiconductor Corporation. Active years: 2000-2007.
Location History:
- Dublin, CA (US) (2005)
- San Jose, CA (US) (2000 - 2007)
Company Filing History:
Years Active: 2000-2007
Title: The Innovations of William Jeffrey Schaefer
Introduction
William Jeffrey Schaefer is a notable inventor based in San Jose, California. He has made significant contributions to the field of semiconductor technology, holding a total of 8 patents. His work focuses on enhancing the reliability and efficiency of electronic components.
Latest Patents
Schaefer's latest patents include innovative designs such as "Materials and structure for a high reliability BGA connection between LTCC and PB boards." This patent describes a ceramic circuit structure that incorporates multiple ceramic layers and electronic components embedded within them. The design features a via that passes through one of the ceramic layers, with a contact pad and a barrier cap to ensure optimal solder application.
Another significant patent is for a "Semiconductor wafer having a bottom surface protective coating." This invention involves a packaged integrated circuit device that includes a die with electrical contacts and a protective film on its back surface. The protective film is designed to be thick enough to allow for laser marking without damaging the die itself. This method of fabrication enhances the durability of semiconductor wafers and reduces chipping during the dicing process.
Career Highlights
William Jeffrey Schaefer is currently employed at National Semiconductor Corporation, where he continues to innovate in the semiconductor industry. His work has been instrumental in developing technologies that improve the performance and reliability of electronic devices.
Collaborations
Schaefer has collaborated with several talented individuals in his field, including Nikhil Vishwanath Kelkar and Pai-Hsiang Kao. These collaborations have contributed to the advancement of various projects and patents.
Conclusion
William Jeffrey Schaefer's contributions to semiconductor technology through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative designs continue to shape the future of electronic components and systems.