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:
Jul. 21, 2015
Filed:
Dec. 15, 2013
SK Hynix Inc., Gyeonggi-do, KR;
Jeong-Tae Hwang, Gyeonggi-do, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
An operation method of a semiconductor memory device including a fuse array for storing one or more repair addresses includes latching additionally a repair address having an address value, which is not stored in the fuse array in response to an active command signal during a repair operation mode, receiving a repair entry control code from an external device in response to a first column command signal during the repair operation mode, performing a rupture operation of the repair address, which is latched, in response to a second column command signal, wherein the rupture operation is determined based on a value of a repair entry control code, and performing exit of the repair operation mode in response to a precharge command signal, which is provided after the second column command signal.