Kurt E Robinson

US Patent:

56300930, May 13, 1997

Filed:

Apr 19, 1996

Appl. No.:

8/635030

Inventors:

Gerald S. Holzhammer - Aloha OR
Kurt B. Robinson - Newcastle CA

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 1200

US Classification:

395442

Abstract:

A non-volatile semiconductor memory that is erased in blocks is described. The non-volatile semiconductor memory includes an active block for storing first data and a reserve block for storing second data. The second data is a copy of the first data. The copy is made during a clean-up operation prior to erasure of the active block. The non-volatile semiconductor memory also includes a mapping table for mapping a logical address of an allocation unit to a physical address of a sector within the non-volatile semiconductor memory.