This inventor holds 11 USPTO granted patents. Top assignee: General Electric Company. Active years: 1978-1990.
Company Filing History:
Years Active: 1978-1990
Title: The Innovations of William W. Piper
Introduction
William W. Piper is a notable inventor based in Scotia, NY (US). He has made significant contributions to the field of thin film transistors, particularly in applications for liquid crystal displays (LCDs). With a total of 11 patents to his name, Piper's work has had a lasting impact on the technology used in modern display devices.
Latest Patents
One of Piper's latest patents involves N.sup.+ amorphous silicon thin film transistors for matrix addressed applications. This invention focuses on a thin film FET switching element that is particularly useful in LCDs. It employs specific materials and a unique fabrication process to ensure chemical compatibility and the formation of good electrical contact to an amorphous silicon layer. The use of titanium as a gate electrode material and N.sup.+ amorphous silicon enhances electrical contact between molybdenum source and drain pads and the underlying amorphous silicon layer. This process not only improves fabrication yield but also enhances device performance.
Another significant patent by Piper is the process and structure for thin film transistors with aluminum contacts. This invention also targets thin film FET switching elements for LCDs. It utilizes special materials to ensure compatibility with the indium tin oxide of a pixel electrode layer, which is used as a transparent conductive material in LCD devices. The incorporation of titanium as a gate electrode and aluminum for enhancing electrical contact between source and drain pads contributes to improved fabrication yield and device reliability.
Career Highlights
William W. Piper has had a distinguished career at General Electric Company, where he has been instrumental in advancing technologies related to display devices. His innovative approaches have led to significant improvements in the performance and reliability of thin film transistors.
Collaborations
Throughout his career, Piper has collaborated with notable colleagues such as George E. Possin and Harold G. Parks. These collaborations have further enriched his work and contributed to the advancements in the field of thin film technology.
Conclusion
William W. Piper's contributions to the field of thin film transistors have been pivotal in enhancing the performance of liquid crystal displays. His innovative patents and career at General Electric Company reflect his dedication to advancing technology in this area.