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. 22, 1977
Filed:
Apr. 15, 1975
Josuke Nakata, Itami, JA;
Abstract
A circular semiconductor wafer includes a thyristor surrounded by a diode through an annular V-shaped groove-filled with glass. That face of the wafer near to the extremity of the groove is disposed on a molybdenum plate through a brazing layer. A base layer on both faces of the wafer has those portions extending through the associated emitter region at predetermined positions to be exposed to the wafers face to form degenerate P-N junctions on and adjacent that face with the adjacent emitter portions. The brazing layer and the opposite electrode for the thyristor include small openings looking the exposed portions of the base layers and the adjacent emitter portions respectively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile