Patent ID: 9455231
Filing Date: 2016-09-27
CPC Classification: C03C,H01L

Claim Text:
1. A resin-sealed semiconductor device comprising: a mesa-type semiconductor element which includes a mesa-type semiconductor base body having a pn-junction exposure portion in an outer peripheral tapered region which surrounds a mesa region, and a glass layer which covers at least the outer peripheral tapered region; and a molding resin which seals the mesa-type semiconductor element, wherein the glass layer is formed by forming a layer made of a glass composition for protecting a semiconductor junction such that the layer covers the outer peripheral tapered region and, subsequently, by baking the layer made of the glass composition for protecting a semiconductor junction, wherein the glass composition for protecting a semiconductor junction is made of fine glass particles prepared from a material in a molten state obtained by melting a raw material which contains at least nickel oxide, SiO the content of SiO the content of Al the content of B the content of ZnO: 3.9 mol % to 14.2 mol % the content of oxides of alkaline earth metals: 7.4 mol % to 12.9 mol %, wherein the content of BaO falls within a range of 2.6 mol % to 5.3 mol %.