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:
May. 02, 2017
Filed:
Jul. 17, 2014
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Mitsuhiko Sakai, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Abstract
A method of manufacturing a wide band gap semiconductor device includes the steps of preparing a wide band gap semiconductor substrate, separating the wide band gap semiconductor substrate into a plurality of first semiconductor chips, fixing the plurality of first semiconductor chips on a fixation member, measuring a breakdown voltage of each of the first semiconductor chips while immersing at least the first semiconductor chips in inert liquid, and after the step of measuring a breakdown voltage of each of the first semiconductor chips, providing a plurality of second semiconductor chips each having each of the first semiconductor chips fixed on the fixation member, by cutting the fixation member.