Semiconductor memory for increasing the number of half good memories by selecting and using good memory blocks
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United States of America Patent
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Sep 16, 1997
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app pub date -
Feb 26, 1996
filing date -
Feb 26, 1996
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Abstract
A semiconductor memory has a plurality of memory arrays, and a plurality of selection circuits. Each of the memory arrays has a plurality of memory blocks. The selection circuits is provided to the memory arrays and is used to independently disable a defective memory block and select a normal memory block in the memory array. Therefore, the semiconductor memory enables to increase the number of partial good memories (half good memories: half capacity memory), and to increase a product yield.
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