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. 11, 1992
Filed:
Jan. 24, 1991
Noboru Noda, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In a light-frequency transistor a base electrode extends from at lease two portions of a transistor region toward the outside, and the extension portions are connected to each other. Thus, a margin of a current density of a base electrode is not decreased. Moreover, the base electrode extends from at least two portions of the transistor region, and at least one of the two extension portions extends on a resistor layer connected to an emitter electrode and is connected to the other extension portion. For this reason, a collector electrode, the emitter electrode, and the base electrode can be formed at the same time, and a pattern for the base electrode can be easily obtained.