Patent ID: 9153597
Filing Date: 2015-10-06
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising: forming a stack structure on a substrate, said stack structure comprising a plurality of sacrificial layers and a plurality of insulation layers, wherein the sacrificial layers and the insulation layers are alternately stacked such that at least one sacrificial layer is interposed between insulation layers in the stack; forming a plurality of openings in said stack structure; forming a plurality of semiconductor elements in said stack structure, wherein each semiconductor element is formed in one of said plurality of openings; forming a trench in said stack structure, wherein formation of said trench creates one or more exposed surfaces in each sacrificial layer and one or more exposed surfaces in each insulation layer; forming one or more passivation elements in said stack structure, wherein each passivation element is formed on one or more of the exposed insulation layer surfaces; forming one or more recessed regions in said stack structure, wherein each recessed region is formed by removing at least a portion of one of said plurality of sacrificial layers; forming one or more conductive elements in said stack structure, wherein each of said conductive elements is formed in one of said one or more recessed regions wherein said passivation element(s) and said recessed region(s) are formed concurrently.