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:
Apr. 24, 2018
Filed:
May. 18, 2017
SK Hynix Inc., Gyeonggi-do, KR;
Yu Cai, San Jose, CA (US);
Fan Zhang, Fremont, CA (US);
Chenrong Xiong, San Jose, CA (US);
June Lee, Sunnyvale, CA (US);
Jaesung Sim, Santa Clara, CA (US);
HyungSeok Kim, Santa Clara, CA (US);
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
A memory device for generating a mapping between one or more unusable columns and one or more backup columns within a memory. The memory includes a plurality of memory cells for storing data. The memory also includes a plurality of columns including a first subset of the plurality of memory cells. Each of the plurality of columns belongs to one of a plurality of data chunks. The memory further includes one or more backup columns including a second subset of the plurality of memory cells. The memory device also includes a controller communicatively coupled to the memory and configured to perform operations including identifying unusable columns, detecting a condition associated with each data chunk, and generating a mapping between the backup columns and the unusable columns based on the condition such that each of the backup columns is mapped to a different unusable column.