Patent ID: 10990520

Abstract:
A method for garbage collecting for non-volatile memories are disclosed. The method includes steps: a) providing a SSD, connected to a host, containing a plurality of TLC blocks and SLC blocks; b) reading 3M TLC pages in a TLC block having data; c) moving valid data in the TLC blocks to at least one clean TLC block; d) sending a host program command of 1 page to the host; e) repeating step b) to step d) until valid data in 8 TLC blocks are moved; f) reading 1 SLC page in a SLC block having data; g) moving valid data in the SLC block to the at least one clean TLC block; h) sending a host program command of α page to the host; and i) repeating step f) to step h) until valid data in the SLC block having data are moved.