Static information storage and retrieval – Read/write circuit – Testing
Reexamination Certificate
2011-08-02
2011-08-02
Nguyen, Van Thu (Department: 2824)
Static information storage and retrieval
Read/write circuit
Testing
C365S230060
Reexamination Certificate
active
07990788
ABSTRACT:
A refresh characteristic test circuit is provided, in a recessed semiconductor device, that is capable of verifying whether a refresh failure is caused by the neighbor/passing gate effect or not and a method for testing the refresh characteristic. The refresh characteristic test circuit includes a select signal generating unit for receiving first address signals and a test mode signal and generate select signals to select cell blocks, a main word line signal generating unit for receiving second address signals and the test mode signal and generate main word lines signals to select main word lines of the selected cell block, and a sub word line signal generating unit for receiving third address signals and the test mode signal and enable sub word lines of the selected main word line.
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Hong Duck Hwa
Yoo Sun Jong
Cooper & Dunham LLP
Hynix / Semiconductor Inc.
King Douglas
Nguyen Van Thu
White John P.
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