06760255 is referenced by 52 patents and cites 14 patents.

A non-volatile memory system is formed of floating gate memory cells arranged in blocks as the smallest unit of memory cells that are erasable together. The system includes a number of features that may be implemented individually or in various cooperative combinations. One feature is the storage in separate blocks of the characteristics of a large number of blocks of cells in which user data is stored. These characteristics for user data blocks being accessed may, during operation of the memory system by its controller, be stored in a random access memory for ease of access and updating. According to another feature, multiple sectors of user data are stored at one time by alternately streaming chunks of data from the sectors to multiple memory blocks. Bytes of data in the stream may be shifted to avoid defective locations in the memory such as bad columns. Error correction codes may also be generated from the streaming data with a single generation circuit for the multiple sectors of data. The stream of data may further be transformed in order to tend to even out the wear among the blocks of memory. Yet another feature, for memory systems having multiple memory integrated circuit chips, provides a single system record that includes the capacity of each of the chips and assigned contiguous logical address ranges of user data blocks within the chips which the memory controller accesses when addressing a block, making it easier to manufacture a memory system with memory chips having different capacities. A typical form of the memory system is as a card that is removably connectable with a host system but may alternatively be implemented in a memory embedded in a host system. The memory cells may be operated with multiple states in order to store more than one bit of data per cell.

Title
Flash EEPROM system with simultaneous multiple data sector programming and storage of physical block characteristics in other designated blocks
Application Number
10/422216
Publication Number
6760255 (B2)
Application Date
April 23, 2003
Publication Date
July 6, 2004
Inventor
Jeffrey G Craig
Fremont
CA, US
John S Mangan
Santa Cruz
CA, US
Kevin M Conley
San Jose
CA, US
Agent
Parsons Hsue & de Runtz
US
Assignee
SanDisk Corporation
CA, US
IPC
G11C 16/04
View Original Source