Samsung Electronics Co., Ltd.

Intae Hwang

Jong-Nam Baek

Sang-Wook Yoo

Dong-Hoon Ham

Joonho Lee

Junseok Park

Jinwan Jun

A copy-back method of a storage device includes reading a memory data from a source area of the storage device. A number of error bits of the memory data is determined. An inspection read operation is performed if the number of error bits exceeds a reference value. The memory data is written to a destination area of the storage device if the number of error bits does not exceed the reference value.

Storage device and copy-back method thereof

An operation method of a nonvolatile memory system includes receiving a write command from an external device, determining continuity of the write command based on an idle time, and performing a write operation of the write command in one of a fast mode and a normal mode based on the determination result.

Method of performing a write operation based on an idle time

Disclosed is a method of writing data in a storage device including a nonvolatile memory device. The method includes receiving write data with a write request, detecting a number of free blocks, if the detected number of free blocks is less than a threshold value, allocating a log block only in accordance with a sub-block unit, but if the detected number of free blocks is not less than the threshold value, allocating the log block in accordance with one of the sub-block unit and a physical block unit, wherein the sub-block unit is smaller than the physical block unit.

Storage device having nonvolatile memory device and write method

Disclosed is a storage device which includes a nonvolatile memory device including a memory block a program order of which is adjusted regardless of an arrangement of memory cells, and a memory controller that performs address mapping to replace a bad page of the memory block with a normal page of the memory block.

Growing community of inventors

Suwon-si, South Korea

Intae Hwang