Method of collecting garbage blocks in a solid state drive
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United States of America Patent
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Issued Date -
Jan 21, 2016
app pub date -
Dec 1, 2014
filing date -
Jul 17, 2014
priority date (Note) -
Abandoned
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Abstract
A method of collecting garbage blocks in a solid state drive includes collecting a garbage block of a multiple level cell flash memory, selecting a spare block as a target block, copying effective data of the garbage block to a physical cell of the target block, searching for unprogrammed physical pages of the physical cell of the target block, using dummy data to complete programming of the unprogrammed physical pages of the physical cell, deleting the effective data in the garbage block, and recycling the garbage block to be a new spare block.
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