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:
Jun. 15, 2021
Filed:
Jun. 24, 2019
Western Digital Technologies, Inc., San Jose, CA (US);
Narendhiran Chinnaanangur Ravimohan, Bangalore, IN;
Muralitharan Jayaraman, Bangalore, IN;
Arun Thandapani, Bangalore, IN;
Ramkumar Ramamurthy, Bangalore, IN;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Apparatuses and techniques are described for more efficiently allocating blocks of data in a memory device. The number of dedicated single-level cell (SLC) blocks which are allocated at the time of manufacture of a memory device can be reduced by transitioning a portion of the multi-level cell (MLC) blocks to an SLC mode at various times in the lifetime of the memory device. In one approach, separate counts are maintained for an MLC block in the SLC and MLC modes. The separate counts can be used to select an MLC block to transition to the SLC mode, or to select an MLC block to program. In another approach, a single count is maintained, where the SLC cycles are weighted less heavily than the MLC cycles.