- Patent Title: Enhanced solid-state drive write performance with background erase
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Application No.: US16412859Application Date: 2019-05-15
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Publication No.: US10658045B1Publication Date: 2020-05-19
- Inventor: Niles Yang , Sahil Sharma , Rohit Sehgal , Phil Reusswig
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Dickinson Wright PLLC
- Agent Steven Hurles
- Main IPC: G11C16/16
- IPC: G11C16/16 ; G11C16/34 ; G11C16/26

Abstract:
A method for programming memory blocks in a memory system includes identifying, using at least one memory block characteristic, candidate memory blocks of the memory blocks in the memory system. The method also includes performing a pre-erase operation, using a pre-erase verify level, on the candidate memory blocks. The method also includes storing, on a pre-erase table, pre-erase information for each memory block of the candidate memory blocks. The method also includes identifying, using the pre-erase table, at least one memory block to be programmed. The method also includes programming the at least one memory block by performing a preprogram erase operation on the at least one memory block using the pre-erase verify level, and performing a write operation on the at least one memory block.
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