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:
Feb. 23, 2016
Filed:
Nov. 03, 2014
Ps4 Luxco S.a.r.l., Luxembourg, LU;
Yuki Hosoe, Tokyo, JP;
PS4 Luxco S.a.r.l., Luxembourg, LU;
Abstract
A semiconductor device includes memory blocks MBand MBand redundancy determination circuitthat can enter a normal operation mode that accesses either memory block MBor memory block MBand a refresh mode that simultaneously accesses both memory block MBand memory block MB. In response to normal memory cell NMC that belongs to at least one of memory blocks MBand MBbeing replaced by redundant memory cell RMC in the refresh mode, redundancy determination circuitdeactivates normal cell area NCA to which normal memory cell NMC that is a source of replacement belongs, and activates redundant cell area RCA to which redundant memory cell RMC that is to be replaced belongs and normal cell area NCA to which normal memory cell NMC that is not being replaced belongs.