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:
Mar. 27, 2018
Filed:
Nov. 11, 2016
Cree, Inc., Durham, NC (US);
Qingchun Zhang, Cary, NC (US);
Alexander Suvorov, Durham, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
A Schottky diode includes a drift region doped with dopants having a first conductivity type, first and second blocking junctions that are doped with dopants having a second conductivity type in an upper portion of the drift region, first and second local current spreading layers doped with dopants having the first conductivity type underneath the respective first and second blocking junctions, and first and second contacts on respective lower and upper portions of the drift region. A channel is provided in the upper portion of the drift region between the first and second blocking junctions, the channel doped with dopants having the first conductivity type and a concentration of dopants in at least a first portion of the channel being lower than the concentration of dopants in the first and second local current spreading layers.