Patent ID: 11862573
Assignee: MICRON TECHNOLOGY, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
a source plate;
a plurality of tungsten plugs fabricated on, or at least formed partly in, the source plate;
a stack formed on the source plate and the plurality of tungsten plugs, the stack comprising alternating insulating layers and conductive layers;
a first set of pillars extending through the stack formed by a process including etching the alternating insulating layers and conductive layers and depositing a pillar material therein, wherein each pillar in the first set of pillars terminates atop a respective tungsten plug in the plurality of tungsten plugs and forms a channel-material string of memory cells extending through the insulating layers and conductive layers; and
a second set of pillars extending through the stack formed by a process including etching the alternating insulating layers and conductive layers and depositing a pillar material therein, wherein each pillar in the second set of pillars terminates in the source plate.