Patent ID: 7985677
Filing Date: 2011-07-26
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising: forming a conductive layer over a substrate; forming a first insulating layer over the conductive layer; forming a second insulating layer over the first insulating layer; forming a first mask layer having a first opening portion over the second insulating layer; forming a second opening portion reaching the conductive layer in the first insulating layer and the second insulating layer by etching the first insulating layer and the second insulating layer by use of the first mask layer; removing the first mask layer; forming a second mask layer over the second insulating layer after removing the first mask layer, the second mask layer having a third opening portion having a larger area than the second opening portion and having a surface with lower wettability than the second insulating layer with respect to a liquid composition containing a conductive material; forming a fourth opening portion in the second insulating layer, the fourth opening portion having a larger area than the second opening portion and overlapping with the second opening portion by etching the second insulating layer by use of the second mask layer; discharging the liquid composition containing the conductive material in the second and fourth opening portions by use of the second mask layer; and removing the second mask layer after discharging the liquid composition containing the conductive material in the second and fourth opening portions.