US Patent 7881141 Semiconductor device and refresh method
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Patent abstract
In order to successively perform refresh operations, a semiconductor device has a plurality of regions performing a repair independently from each other, even when the repair is carried out in the region by a replacement with a repair memory block included in a plate included in each region. Specifically, the successive refresh operations are performed by alternately activating word lines in the respective regions so as to ensure a sufficiently long precharge period.
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Patent Inventor Names
Ichiro Abe0
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US Patent 07881141 Semiconductor device and refresh method US Patent 7881141 Semiconductor device and refresh method
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Patent Number
078811410
Patent Number
78811410
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Patent Jurisdiction
Patent Number
078811410
Date of Patent
February 1, 2011
0Patent Application Number
122607900
Date Filed
October 29, 2008
0Official Website
Patent Primary Examiner
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US Patent 07881141 Semiconductor device and refresh method
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Is a
Patent jurisdiction
Patent number
07881141
Date of patent
February 1, 2011
Patent application number
12260790
Date Filed
October 29, 2008
Patent primary examiner
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