Samsung Electronics Co., Ltd.

Sin-Ho Kim

Seong-Jin Jang

Jun-Bae Kim

Young-Uk Chang

Hyoung-Joo Kim

Jong-Pil Son

Je-Min Ryu

Sung-Min Seo

Ju-Seop Park

For selecting anti-fuses in a semiconductor memory device, a decoder block may be enabled to receive selection information for selecting the anti-fuses. The selection information is decoded in the decoder block to select at least one of the anti-fuses. Target operation is performed on the selected anti-fuses. The decoder block is disabled.

Method of selecting anti-fuses and method of monitoring anti-fuses

A semiconductor memory device for controlling an operation of a delay-locked loop (DLL) circuit is provided. The semiconductor memory device includes a DLL circuit that receives an external clock signal and that performs a locking operation on the external clock signal and an internal clock signal, thereby obtaining a locked state. A control unit controls the DLL circuit to constantly maintain the locked state during an updating period of an auto-refresh period of an auto-refresh operation for refreshing memory banks.

Semiconductor memory device for controlling operation of delay-locked loop circuit

A semiconductor memory device for controlling an operation of a delay-locked loop (DLL) circuit includes a DLL circuit that receives an external clock signal and that performs a locking operation on the external clock signal and an internal clock signal, thereby obtaining a locked state. A control unit controls the DLL circuit to constantly maintain the locked state during an updating period of an auto-refresh period of an auto-refresh operation for refreshing memory banks.

A control selection circuit for a semiconductor device including a pulse generation circuit to delay a first pulse signal by a predetermined delay time to generate a second pulse signal, a frequency information generation circuit to generate a selection signal in response to the second pulse signal, the selection signal indicating an operating frequency of the semiconductor device, and a control circuit to select a control scheme of for the semiconductor device in response to the selection signal.

Growing community of inventors

Suwon-si, South Korea

Sin-Ho Kim