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:
Jun. 02, 2020
Filed:
Jun. 29, 2017
Gpower Semiconductor, Inc., Suzhou, CN;
GPOWER SEMICONDUCTOR, INC., Suzhou, CN;
Abstract
The present disclosure provides a schottky barrier rectifier, comprising: a communication layer; a drift layer provided on a side of the communication layer and forming a heterojunction structure together with the communication layer; anode metal provided on a side of the drift layer away from the communication layer; and cathode metal provided on a side of the communication layer away from the drift layer. The drift layer is provided with a first area, which extends in a direction of thickness thereof, between a surface of the drift layer away from the communication layer and a surface thereof close to the communication layer, the first are a containing a first metal element and the content of the first metal element in the first area changing in the direction of thickness. The rectifier of the present disclosure uses polarized charges formed by a heterojunction, and thus the breakdown voltage of devices may be improved.