Patent ID: 8928149
Filing Date: 2015-01-06
Classification: H01L

Abstract:
1. A 3-D structure, comprising: a stack including a plurality of active layers at a corresponding plurality of depths in the stack, including a top active layer, and a plurality of contact landing areas on respective active layers; a first insulating layer over the top active layer, and having a contact area opening over the plurality of contact landing areas, the contact area opening having a longitudinal dimension and a transverse dimension; a second insulating layer over the first insulating layer, and filling the contact area opening and having a depth over the first insulating layer; a plurality of interlayer conductors in the second insulating layer, the interlayer connectors having a first portion within the contact area opening through the first insulating layer and extending to a corresponding one of said contact landing areas, and a second portion in part outside the contact area opening above the first insulating layer, said first portion having a transverse dimension Y said second portion having a transverse dimension Y