Patent ID: 9666281
Date: 2017-05-30
CPC Classifications: G11C,H01L

Claim:
1. A monolithic three-dimensional memory device comprising: a stack of alternating layers comprising insulating layers and electrically conductive layers and located over a substrate; and a memory stack structure extending through the stack and comprising a memory film and a semiconductor p-i-n junction structure vertically extending through the stack substantially perpendicular to a top surface of the substrate; wherein the semiconductor p-i-n junction structure has a lower junction between an intrinsic semiconductor portion and a lower doped semiconductor portion having a doping of a first conductivity type, and an upper junction between the intrinsic semiconductor portion and an upper doped semiconductor portion having a doping of a second conductivity type; and wherein one of the first and second conductivity types is p-type and another of the first and second conductivity types is n-type.