Skhynix Inc.

Jung Woon Shim

Dong Hwan Lee

Jin Gu Kim

Sung Jae Chung

Seung Won Kim

Su Min Yi

A semiconductor device includes memory strings each including a drain select transistor, memory cells and a source select transistor, which are connected between a bit line and a common source line and suitable for operating based on voltages applied to a drain select line, word lines and a source select line, respectively, and an operation circuit suitable for performing a pre-program operation, an erase operation and a post-program operation on the memory strings. The operation circuit sequentially performs erase operations on the drain select transistors included in the memory strings.

Semiconductor device

Provided are a semiconductor memory device and an operating method thereof. The semiconductor memory device includes a memory cell array including a plurality of strings, wherein each of the plurality of strings includes a first memory cell group, and a second memory cell group and peripheral circuits configured to generate a first precharge voltage applied to the first memory cell group and a second precharge voltage applied to the second memory cell group when a channel precharge operation is performed during a program operation, and generate a program voltage to apply the program voltage to the memory cell array when a program voltage application is performed.

Semiconductor memory device being capable of reducing program disturbance and program method thereof

A semiconductor memory device includes memory cell strings including selection transistors and memory cells coupled between the selection transistors, a peripheral circuit configured to apply an operating voltage to the memory cell strings during a read operation or a verify operation, and a control circuit configured to control the peripheral circuit so that the operating voltage being applied to the selection transistors is controlled to reduce a potential level of a channel of the memory cell strings during the read operation or the verify operation.

Semiconductor memory device including memory cell strings and method of operating the same

A semiconductor memory device includes a memory block configured to include memory cells coupled to word lines and a peripheral circuit configured to perform a first program operation, a program verifying operation and a second program verifying operation for memory cells coupled to a word line selected from the word lines, and supply program allowable voltages having different levels to selected bit lines of program allowable cells located between program inhibition cells in the first program operation and the second program operation.

Flash memory device and method of programming the same

The present invention relates to a semiconductor memory device and a program method thereof. The program method according to an embodiment of the present invention includes: precharging a plurality of cell strings by providing a positive voltage to the plurality of cell strings through a common source line; and performing a program operation on selected memory cells by applying a program pulse to the selected memory cells.

Growing community of inventors

Incheon, South Korea

Jung Woon Shim