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:
Sep. 16, 1980
Filed:
May. 24, 1978
Aiichiro Nara, Amagasaki, JP;
Hisao Kondo, Amagasaki, JP;
Takeji Fujiwara, Amagasaki, JP;
Hideaki Ikegawa, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A Schottky barrier semiconductor device comprising a semiconductor substrate having a hole in part of one of its main surfaces, a surface protecting film formed on the main surface and having a flange-like part extending over the edge of the hole, and a barrier metal formed on the entire wall of the hole including areas underneath the flange-like portion. The barrier metal film thus formed prevents concentration of an electric field at the edge of the interface between the barrier metal and the semiconductor substrate, thereby improving the reverse breakdown characteristics.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile