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:
Sep. 12, 2017
Filed:
Sep. 29, 2015
Sandisk Technologies Llc, Plano, TX (US);
Dennis S. Ea, Hayward, CA (US);
Ivan Baran, San Jose, CA (US);
Aaron Lee, Mountain View, CA (US);
Mrinal Kochar, San Jose, CA (US);
Mikhail Palityka, Ontario, CA;
Yew Yin Ng, Milpitas, CA (US);
Abhijeet Bhalerao, San Jose, CA (US);
SANDISK TECHNOLOGIES LLC, Plano, TX (US);
Abstract
Partially-bad blocks are identified in a 3-D block-erasable nonvolatile memory, each partially-bad block having one or more inoperable separately-selectable sets of NAND strings and one or more operable separately-selectable sets of NAND strings. Operable sets of NAND strings within two or more partially-bad blocks are identified and are mapped to form one or more virtual blocks that are individually assigned virtual block addresses. The virtual block address are maintained in a list and used to access the virtual blocks.