Patent ID: 9318618
Filing Date: 2016-04-19
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a first insulating film; an oxide semiconductor film over the first insulating film; a second insulating film over the oxide semiconductor film; and a first conductive film overlapping with the oxide semiconductor film with the second insulating film provided therebetween, wherein the first insulating film includes a first region and a second region, wherein the oxide semiconductor film includes a first region and a second region, wherein each of the second region of the first insulating film and the second region of the oxide semiconductor film includes boron or phosphorus, wherein the second region of the first insulating film is in contact with the second region of the oxide semiconductor film, wherein the first conductive film overlaps with the first region of the first insulating film and the first region of the oxide semiconductor film, and wherein the first conductive film does not overlap with the second region of the first insulating film and the second region of the oxide semiconductor film.