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.

Date of Patent:
Nov. 29, 2016

Filed:

Oct. 08, 2015
Applicant:

SK Hynix Inc., Icheon-si Gyeonggi-do, KR;

Inventor:

Young Bo Shim, Dangjin-si, KR;

Assignee:

SK HYNIX INC., Icheon-Si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 17/00 (2006.01); G11C 29/00 (2006.01); G11C 17/16 (2006.01); G11C 17/18 (2006.01);
U.S. Cl.
CPC ...
G11C 29/78 (2013.01); G11C 17/16 (2013.01); G11C 17/18 (2013.01); G11C 29/76 (2013.01);
Abstract

A self repair device may include: an electrical fuse array configured to store bit information of a failed address in a fuse; an electrical fuse controller configured to store a row address or column address corresponding to a failed bit when a failure occurs, generate a repair address by comparing a failed address inputted during a test to the address stored therein, output a rupture enable signal for controlling a rupture operation of the electrical fuse array, and output row fuse set data or column fuse set data in response to the failed address; and a row/column redundancy unit configured to perform a row redundancy or column redundancy operation in response to the row fuse set data or the column fuse set data applied from the electrical fuse array.


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