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, 2020
Filed:
Mar. 19, 2019
Rohm Co., Ltd., Kyoto, JP;
Akihiko Tsubaki, Kyoto, JP;
Kanako Deguchi, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
The present disclosure provides a semiconductor device that prevents a resistor component connected in series with a base electrode from the electrostatic damage. A semiconductor device includes, a collector layer, which is a first conductivity type semiconductor, a base layer, which is a second conductivity type semiconductor and connected with the collector layer, an emitter layer, which is the first conductivity type semiconductor and connected with the base layer, a first electrode, electrically connected to the base layer, a first resistor component, connected in series with the first electrode in a conductive path connecting the first electrode and the base layer, a second electrode, electrically connected to the emitter layer and the first resistor component; and a protection component, connected to the first electrode in parallel with the first resistor component, wherein the protection component comprises a pair of diodes formed by a pn junction and by a way of making both ends of the conductive path into a same polarity.