Taiwan Semiconductor Manufacturing Comp. Ltd.

TSMC China Company Limited

TSMC Nanjing Company, Limited

Mu-Yang Ye

He-Zhou Wan

Xiu-Li Yang

Ming-Hung Chang

Lu-Ping Kong

Yan-Bo Song

A device includes a memory array, bit line pairs, word lines, a modulation circuit and a control signal generator. The memory array has bit cells arranged in rows and columns. Each bit line pair is connected to a respective column of bit cells. Each word line is connected to a respective row of bit cells. The modulation circuit is coupled with at least one bit line pair. The control signal generator is coupled with the modulation circuit. The control signal generator includes a tracking wiring with a tracking length positively correlated with a depth distance of the word lines. The control signal generator is configured to produce a control signal, switching to a first voltage level for a first time duration in reference with the tracking length, for controlling the modulation circuit. A method of controlling aforesaid device is also disclosed.

Signal generator for controlling timing of signal in memory device

A device includes a first memory subarray, a first modulation circuit, a second memory subarray, a second modulation circuit and a control signal generator. The first modulation circuit is coupled to the first memory subarray. The second memory subarray is located between the first memory subarray and the first modulation circuit along a direction. The second modulation circuit is coupled to the second memory subarray. The control signal generator is configured to generate a first control signal to trigger the first modulation circuit according to a first length of the first memory subarray along the direction, and configured to generate a second control signal to trigger the second modulation circuit according to a second length of the second memory subarray along the direction.

A memory device includes a first transistor, a second transistor and a third transistor. The first transistor is coupled to a first word line at a first node. The second transistor is coupled to a second word line different from the first word line at a second node. A control terminal of the first transistor is coupled to a control terminal of the second transistor. The third transistor is coupled between a ground and a third node which is coupled to each of the first node and the second node. In a layout view, each of the first transistor and the second transistor has a first length along a direction. The first transistor, the third transistor and second transistor are arranged in order along the direction. A method is also disclosed herein.

Memory device and operating method thereof

A memory device includes a word line driver. The word line driver is coupled through word lines to an array of bit cells. The word line driver includes a first driving circuit, a second driving circuit and a modulating circuit. The first driving circuit and the second driving circuit are configured to select a word line. The modulating circuit is coupled through the selected word line to the first driving circuit and the second driving circuit, and is configured to modulate at least one signal transmitted through the selected word line. The first driving circuit and the second driving circuit are further configured to charge the selected word line to generate a first voltage signal and a second voltage signal at two positions of the selected word line. The first voltage signal is substantially the same as the second voltage signal. A method is also disclosed herein.

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Nanjing, China

Mu-Yang Ye