The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 1991
Filed:
Oct. 27, 1989
Michael Hack, Mountain View, CA (US);
John G Shaw, Portola Valley, CA (US);
Michael Shur, Charlottesville, VA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A thin film transistor and optical sensor including a substrate upon which are supported a gate electrode layer, a gate dielectric layer, a source electrode comprising finger elements, a semiconductor layer overlying the gate dielectric layer and at least partially surrounding the source electrode, a drain electrode layer contiguous with the semiconductor layer, barrier elements for inhibiting a drain field from reaching the source electrode, and a transparent, electrically conductive drain contact member contiguous with said drain electrode layer, through which optical energy may pass to the semiconductor layer.