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:
Nov. 09, 1982
Filed:
Mar. 04, 1980
Katsuhiko Takigami, Yokohama, JP;
Makoto Azuma, Yokohama, JP;
Abstract
A compression type semiconductor device includes a semiconductor element; at least one metal plate having substantially upright edge surfaces, a planar contacting surface engaging a first surface of the semiconductor element and a continuous curved surface interconnecting the edge surfaces and the contacting surface; and a means for pressing the contacting surface of the metal plate against the first surface of the semiconductor element. The continuous curved surface of the metal plate is so formed that at each point on the periphery of the contacting surface at least one plane normal to the contacting surface intersects the curved surface in an arcuate curve which tangentially joins the contacting surface.