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. 10, 1987
Filed:
Aug. 26, 1986
Applicant:
Inventors:
Kakutaro Suda, Itami, JP;
Tadashi Hirao, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; B44C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
156653 ; 156648 ; 156657 ; 1566611 ; 156662 ; 357 34 ; 357 43 ; 437 33 ; 437193 ; 437200 ;
Abstract
In a method for fabricating a bipolar transistor in accordance with the present invention, a base electrode (9a) of metal silicide is formed being separated from an emitter region (7) only by the thickness of a double-layered insulator film (109, 203).