Patent ID: 11916032
Assignee: MICRON TECHNOLOGY, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 25:
26. A method of forming a microelectronic device, the method comprising:
forming a first microelectronic device structure comprising:
a multiplexer region formed in a base structure;
a memory array region comprising vertical stacks of memory cells vertically neighboring the multiplexer region;
a stack structure intersecting the vertical stacks of memory cells, conductive structures of the stack structure in electrical communication with memory cells of the vertical stacks of memory cells, horizontal ends of the conductive structures defining steps of a staircase structure;
first conductive contact structures in electrical communication with the conductive structures of the stack structure;
conductive pillar structures vertically extending through the vertical stacks of memory cells and in electrical communication with multiplexers of the multiplexer region;
global digit lines extending in a horizontal direction vertically below the vertical stacks of memory cells;
second conductive contact structures in electrical communication with the global digit lines; and
a first oxide material overlying the memory array region and the stack structure;

forming a second microelectronic device structure comprising:
a sense amplifier region comprising one or more sense amplifiers; and
a second oxide material overlying the sense amplifier region; and

attaching the first microelectronic device structure to the second microelectronic device structure, attaching the first microelectronic device structure to the second microelectronic device structure comprising:
horizontally aligning the second conductive contact structures with circuitry of the sense amplifier region; and
bonding the first oxide material to the second oxide material.