Skhynix Inc.

Jae Wan Yeon

Jin Yeong Kim

Ju Hyun Kim

Do Hun Kim

Kwang Sun Lee

Kee Bum Shin

An operation method includes buffering data chunks to be programmed in the multi-level cells in a write buffer; backing up at least one backup data chunk of the data chunks to a backup memory; determining a program sequence of the data chunks, the program sequence for programming a non-backup data chunk among the data chunks to the multi-level cells through a second step program operation of the multi-step program operation; and controlling the memory device to program the data chunks in the multi-level cells, based on the program sequence, by performing first and second step program operations of the multi-step program operation in a first page of the multi-level cells, the second step program operation performed in the first page later than another first step program operation performed in a second page subsequent to the first page.

Controller and operation method thereof

The present technology relates to an electronic device. According to the present technology, a storage device that manages map data using a volatile memory device having a limited capacity may include a nonvolatile memory device, a memory controller, and the volatile memory device which includes a map chunk buffer, a map chunk status table, a journal buffer, and a meta slice buffer.

Storage device and method for updating meta slice including map chunks stored in nonvolatile memory device according to journal entries

A controller for controlling a memory device is provided to include: a request receiver configured to receive a request including a logical address from a host; a dependency checker configured to acquire the request from the request receiver and check a dependency of the request; a map manager configured to generate a command including a physical address mapped to the logical address of the request in response to a result of checking that the request has no dependency on the prior incomplete request; and a command submitter configured to provide the memory device with the command generated by the map manager, wherein the request receiver, the dependency checker, the map manager and the command submitter are structured to configure a data pipeline such that operations of the request receiver, the dependency checker, the map manager, and the command submitter deliver are performed in series.

Growing community of inventors

Icheon-si, South Korea

Jae Wan Yeon