Patent ID: 8835271
Filing Date: 2014-09-16
Classification: G02F,H01L

Abstract:
1. A method for manufacturing a semiconductor device comprising: forming a first insulating film; forming a second insulating film over the first insulating film, so that the second insulating film has a first opening; forming a third insulating film over the second insulating film so as to be in contact with the first insulating film in the first opening; and forming a second opening in the third insulating film and the first insulating film, wherein a section of an edge portion of the first opening curves, wherein a curvature center of the section of the first opening exists on the second insulating film side, wherein the third insulating film is in contact with the curved surface of the second insulating film, wherein the second opening is surrounded by the first opening, and wherein the second opening deviates to one direction in the first opening.