Patent ID: 11929323
Assignee: MICRON TECHNOLOGY, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method of forming a microelectronic device, comprising:
forming a microelectronic device structure comprising:
a base structure;
a doped semiconductive material over the base structure;
a stack structure overlying the doped semiconductive material and comprising a vertically alternating sequence of conductive structures and insulative structures;
cell pillar structures vertically extending through the stack structure and the doped semiconductive material and into the base structure; and
digit line structures vertically overlying the stack structure;

forming an additional microelectronic device structure comprising control logic devices;
attaching the microelectronic device structure to the additional microelectronic device structure to form a microelectronic device structure assembly, the digit line structures vertically interposed between the stack structure and the control logic devices within the microelectronic device structure assembly;
removing the base structure and portions of the cell pillar structures vertically extending into the base structure to expose the doped semiconductive material; and
patterning the doped semiconductive material after removing the base structure and the portions of the cell pillar structures to form at least one source structure over the stack structure and coupled to the cell pillar structures.