Patent ID: 11956962
Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A three-dimensional flash memory device, comprising:
a substrate;
multiple columns of semiconducting material disposed above the substrate, each of the multiple columns extending along a vertical direction;
a word line stack wrapping around the multiple columns; and
a charge-storage element disposed between the word line stack and each of the multiple columns, wherein each of the multiple columns, the charge-storage element, and the word line stack constitute multiple memory cells, wherein two of the multiple columns comprises at least two local bit lines, wherein two of the multiple memory cells comprise a channel breaker extending along the vertical direction and separating the two of the multiple memory cells by separating the at least two local bit lines.