Title:
METHOD AND APPARATUS FOR DATA ERASE IN MEMORY DEVICES
Document Type and Number:
WIPO Patent Application WO/2021/237642
Kind Code:
A1
Abstract:
A method for data erase in a memory device. The method includes providing first erase carriers from a body portion for the memory cell string, during an erase operation in a memory cell string. The first erase carriers flow in a first direction from a source side of the memory cell string to a drain side of the memory cell string. Further, the method includes providing second erase carriers from a junction at the drain side of the memory cell string. The second erase carriers flow in a second direction from the drain side of the memory cell string to the source side of the memory cell string. Then, the method includes injecting the first erase carriers and the second erase carriers to charge storage portions of the memory cells in the memory cell string.
Inventors:
LIU LEI (CN)
ZHOU WENXI (CN)
XIA ZHILIANG (CN)
ZHOU WENXI (CN)
XIA ZHILIANG (CN)
Application Number:
PCT/CN2020/093096
Publication Date:
December 02, 2021
Filing Date:
May 29, 2020
Export Citation:
Assignee:
YANGTZE MEMORY TECH CO LTD (CN)
International Classes:
G11C16/14
Foreign References:
| US20140151783A1 | 2014-06-05 | |||
| US9805805B1 | 2017-10-31 | |||
| CN110993009A | 2020-04-10 | |||
| US20190006014A1 | 2019-01-03 | |||
| US20160314833A1 | 2016-10-27 | |||
| US20200143888A1 | 2020-05-07 |
Other References:
See also references of EP 3942554A4
Attorney, Agent or Firm:
NTD UNIVATION INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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