Spansion Llc.

Chih Hsueh

Ping Hou

Richard Chen

Wiliam Kern

Systems and methods for improving the performance and reliability of flash memory solid state drive devices are described herein. A flash memory array component stores data. A memory hierarchy component transfers data between the host and the flash memory array component. The memory hierarchy component includes a level one ('L1') cache coupled to a merge buffer, the flash memory array component, and the host. The merge buffer is coupled to the flash memory array component. The L1 cache and merge buffer include volatile memory, and the host is coupled to the merge buffer and flash memory array component. The memory hierarchy component includes a write component and a read component. The write component writes data to at least one of the L1 cache, merge buffer, or flash memory array component. The read component reads data from at least one of the L1 cache, merge buffer, or flash memory array component.

Efficient memory hierarchy in solid state drive design

Systems and/or methods that provide for the accuracy of address translations in a memory system that decouples the system address from the physical address. Address-modifying transactions are recorded in a non-volatile write buffer to couple the last-in-time translation physical address/location with the current translated physical location/address. In addition, integrity check protection may be applied to the translation and to the written data to limit the amount of data that may be lost in the event of a failure/error occurring during the write operation. Transaction recording and integrity check protection allows for recovery of write operations that may not have fully completed due to the failure/error.

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Cupertino, CA, United States of America

Chih Hsueh