The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2023
Filed:
Mar. 30, 2020
Kioxia Corporation, Minato, JP;
Amit Jain, Cupertino, CA (US);
Kioxia Corporation, Tokyo, JP;
Abstract
An improved solid state drive (SSD). The SSD comprising a plurality of non-volatile memory dies, each configured to store at least one block of data associated with one of a plurality of superblocks each containing a plurality of blocks; a volatile memory; and a memory controller. The memory controller configured to store a bit map associated with a first superblock of the plurality of superblocks in the volatile memory, wherein the bit map is configured to indicate whether each of the plurality of blocks is a replacement block, store a block address list in the volatile memory, the block address list is configured to store an address of one or more replacement blocks, and store a replacement block index in the volatile memory associated with the first superblock of the plurality of superblocks, the replacement block index corresponding to the location of an address of a first replacement block of the first superblock in the block address list.