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:
Nov. 08, 2016
Filed:
Mar. 17, 2016
SK Hynix Inc., Gyeonggi-do, KR;
Won Sun Park, Seoul, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
The semiconductor memory device includes a memory cell array including guarantee blocks, normal blocks, and redundancy blocks. A bad block address indicates which block from the guarantee blocks and the normal blocks is defective, and an indication information indicates whether the bad block address belongs to the guarantee blocks or to the normal blocks. A request block address is supplied together with associated block type information. The block type information indicates whether the request block address belongs to the guarantee blocks or to the normal blocks. A match signal is enabled when the block type information matches the indication information, and the request block address matches the bad block address. The enablement of the match signal allows the defective block to be replaced with one block from the redundancy blocks.