Patent ID: 9368402
Filing Date: 2016-06-14
CPC Classification: H01L

Claim Text:
1. A method of manufacturing a semiconductor device, the method comprising: placing a first photosensitive material over a conductive region over a substrate; patterning the first photosensitive material to remove unexposed first photosensitive material and expose the conductive region; placing a second photosensitive material over the first photosensitive material; patterning the second photosensitive material to remove exposed second photosensitive material and expose the conductive region, the patterning the second photosensitive material forming a patterned second photosensitive material and at least one opening in the patterned second photosensitive material, wherein the first photosensitive material extends from a first sidewall of the at least one opening to a second sidewall of the at least one opening; and forming a seed layer along sidewalls of the at least one opening.