Patent ID: 9245800
Filing Date: 2016-01-26
CPC Classification: H01L

Claim Text:
1. A method of manufacturing a semiconductor device, comprising the steps of: (a) forming a first insulating film over a first main surface of a semiconductor substrate; (b) etching the first insulating film to form, respectively, a plurality of connection holes reaching the first main surface of the semiconductor substrate in each of partitioned regions formed by partitioning a connection pad-forming region; (c) embedding a first metal film inside the connection holes to form, respectively, a plurality of connection electrodes including the first metal film in each of the partitioned regions; (d) forming a second insulating film over the first insulating film and the connection electrodes; (e) etching the second insulating film to form, respectively, trenches passing through the second insulating film from the upper surface to the lower surface in each of the partitioned regions; (f) embedding a second metal film inside the trench in each of the partitioned regions to form, respectively connection pads including the second metal film in each of the partitioned regions; (g) after subjecting the semiconductor substrate to a processing thinly from a second main surface opposite to the first main surface, forming a through hole reaching the first main surface in the semiconductor substrate; (h) forming a third insulating film on a side surface of the through hole; and (i) forming, inside the through hole, a through electrode electrically coupled to the connection pad in each of partitioned regions.