Patent ID: 9293595
Filing Date: 2016-03-22
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a first conductive layer; a first insulating layer covering the first conductive layer; a thin-film stack over the first insulating layer, the thin-film stack comprising a semiconductor layer and an impurity semiconductor layer over the semiconductor layer; a second conductive layer in contact with at least the impurity semiconductor layer of the thin-film stack; a third conductive layer over a part of the first conductive layer; a second insulating layer comprising a contact hole over the second conductive layer; and a fourth conductive layer connected to the second conductive layer through the contact hole, and wherein the contact hole is formed in an intersection portion of grating-shaped electrodes formed using the second conductive layer, and wherein the second conductive layer comprises a plurality of openings.