Erasing method for flash memory
A flash memory, over-erasing technology, applied in static memory, read-only memory, information storage, etc., can solve problems such as affecting erasure verification, wasting time, etc., and achieve the effect of shortening erasing time
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0030] based on the following Figure 4 , specify the preferred embodiment of the present invention:
[0031] Such as Figure 4 Shown is a flow chart of a method for erasing a flash memory provided by the present invention, and the method for erasing a flash memory includes the following steps:
[0032] Step 1. Pre-program verification. If any cell is in the erased state, perform pre-programming on the cell.
[0033] Pre-programming is pre-programming for each unit in a sector (sector) or block (block).
[0034] Step 2. Clear the erase flag bit.
[0035] Step 3. Perform erasure verification internally. If the verification fails, go to step 4. If the verification passes, go to step 5;
[0036] Step 4. Perform an erase operation on the sector or block in the under-erased state, set the erase flag to 1, and jump to step 3.
[0037] Step 5. Clear the over-erased flag bit.
[0038] Step 6, judging whether the erasing flag is zero, if yes, then jump to step 10, if not, then ju...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com