Samsung Electronics Co., Ltd.

Seungyong Choi

Hyun Seok Seo

Yonghyuk Choi

Sangwon Park

Jooyong Park

Dongjin Shin

Seungbum Kim

Joosang Yoo

Jonghoon Oh

A memory device comprises: a memory cell array including a plurality of cell blocks including a first cell block storing information other than user data and a second cell block storing the user data, wherein each of the plurality of cell blocks includes a plurality of cell strings and control circuitry configured to control a write operation and a read operation of the memory cell array. A first ground select line (GSL) region included in the first cell block includes a plurality of GSLs stacked in a vertical direction. One or more ground select transistors of a plurality of ground select transistors connected to each of the GSLs are programmed to a first threshold voltage and the other ground select transistors of the plurality of ground select transistors not connected to the GSLs are programmed to a second threshold voltage that is higher than the first threshold voltage. A first line included in the first GSL region in the first cell block is arranged at a same height as a word line connected to memory cells storing the user data in the second cell block.

Memory device and operating method thereof

A non-volatile memory device includes a meta area having a first region storing first initial data, and second regions storing second initial data, different from each other; a user area configured to store user data; an initialization register configured to store the first initial data or update the second initial data in whole or in part; and control logic configured to perform a read operation, a program operation, or an erase operation using the initial data stored in the initialization register.

Non-volatile memory device, storage device including the same, and operating method thereof

A refrigerator including: a main body having a storage room; a door opening and closing the storage room; an electric box to accommodate a printed circuit board; and a guide case to accommodate the electric box, provided on a top surface of the main body, and including a guide rail formed to extend along a front-rear direction of the guide case to guide a movement of the electric box along the front-rear direction of the guide case.

Refrigerator

Growing community of inventors

Suwon-si, South Korea

Seungyong Choi