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:
Apr. 20, 1982
Filed:
May. 12, 1980
Akira Aso, Nara, JP;
Hitoshi Kawanabe, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A field effect semiconductor device comprises a P-N junction with a depletion layer responsive to radiant energy for controllably enabling the field effect semiconductor device. The depletion layer occurs near at least a pair of gate locations within a silicon substrate. The gate locations are of P-type while the silicon substrate is of N-type. The depletion layer is rendered ineffective by photoelectromotive force derived from the radiant energy. A channel emerges according to the shrinkage of the depletion layer to thereby provide electrical connection between a source and drain electrodes of the field effect transistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile