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Inventor: Toshitaka Uchikoba


Address: Hyogo, JP
No. of patents: 3
Last patent issue date: 12/30/2008

NumberTitleIssue Date
7471579Semiconductor memory and test method for the same
In a semiconductor memory, a sub bit line hierarchical switch is provided correspondingly to each sub bit line between the sub bit line and a main bit line corresponding to the sub bit line, and a complementary sub bit line hierarchical switch is provided correspond...
12/30/2008
7038967Semiconductor apparatus capable of performing refresh control
A semiconductor apparatus according to the present invention comprises a current source increasing a current volume in compliance with a rise of a temperature and an oscillation circuit driven by the current of the current source and outputting a clock for refresh c...
05/02/2006
6483763Semiconductor memory device
Each of a plurality of sense amplifiers in a sense amplifier drive circuit of a DRAM includes a PMOS sense amplifier drive transistor and an NMOS sense amplifier drive transistor. The source of each of the PMOS sense amplifier drive transistors is connect...
11/19/2002
 
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