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US 2010/0142275 A1Published application
Continuous address space in non-volatile-memories (nvm) using efficient management methods for array deficiencies
AssigneeInfinite Memories Ltd.
InventorsYoav YOGEV, Amir Gabai, Eli Lusky
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Abstract
The invention provides a method of managing bad block in a data storage device having an OTP memory die in order to present a continues address space toward the user, by using some of the OTP memory space for the management and maintaining address replacement table. Fast and efficient programming and reading algorithms are presented.
Claims23
A method of programming a Non Volatile Memories (NVM) having defective blocks comprising:
- assigning a replacement redirection block address for programming data intended to be programmed in said bad block wherein,
- assigning a replacement redirection block comprising:
- programming information in concise table within extended Fast Access Memory (FAM) table of the NVM.
A method of reading user data page using embedded memory logic management in a continuous logical address space NVM, having several defective blocks, comprising:
- (a) searching a concise redirection table located in extended Fast Access Memory (FAM) section for data indicative of actual address of redirected blocks;
- (b) reading the directed block;
- and
- (c) presenting continues address space to the host device.
1 more element
Dependencies are inferred from the claim text.