Patent ID: 9640619
Date: 2017-05-02
CPC Classifications: G01R,H01L

Claim:
1. A method of manufacturing a wide band gap semiconductor device, comprising the steps of: preparing a wide band gap semiconductor substrate having a pair of opposite main surfaces, with an electrode formed on each of the pair of main surfaces; separating the wide band gap semiconductor substrate into a plurality of first semiconductor chips; fixing the plurality of first semiconductor chips on a conductive fixation member, wherein the conductive fixation member is metallic; after the step of fixing the plurality of first semiconductor chips, discretely measuring a breakdown voltage of each of the plurality of first semiconductor chips while immersing at least the plurality of first semiconductor chips in inert liquid; and after the step of measuring a breakdown voltage of each of the plurality of first semiconductor chips, providing a plurality of second semiconductor chips each having each of the plurality of first semiconductor chips fixed on the conductive fixation member, by cutting the conductive fixation member.