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:
Aug. 01, 1989
Filed:
Aug. 25, 1987
Applicant:
Inventors:
Masahiro Abe, Yokohama, JP;
Masaharu Aoyama, Fujisawa, JP;
Jiro Ohshima, Yokohama, JP;
Takashi Ajima, Kamakura, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 52 ; 357 54 ; 357 63 ; 357 71 ; 357 91 ;
Abstract
A semiconductor device has a passivation layer including a polyimide film. Argon ions are implanted in the polyimide film to convert it into an electrically stable insulating film.
Abe, Masahiro. (1989). Semiconductor device having insulating layer including polyimide film (U.S. Patent No. 4853760). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4853760
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile