United Microelectronics Corp.

Po-Lin Chen

Tsung-Hsun Wu

Chien-Hui Huang

An SRAM structure includes a substrate. A first active region, a second active region, a third active region and a fourth active region are disposed on the substrate. A first gate structure includes a first part, a second part and a third part disposed on the substrate. The first part and the third part are perpendicular to the first active region. The second part is parallel to the first active region. The first part covers the first active region, the second active region and the fourth active region. The third part covers the fourth active region. The second part is disposed on an insulating region between the second active region and the fourth active region, and the second part contacts the first part and the third part.

SRAM structure

The present invention provides a layout pattern of a static random access memory (SRAM), comprising at least two inverters coupled to each other for storing data, each inverter comprising an L-shaped gate structure on a substrate, the L-shaped gate structure includes a first portion arranged along a first direction and a second portion aligned along a second direction, wherein the first portion crosses a first diffusion region to form a pull-up device, and the first portion crosses a second diffusion region and a third diffusion region to form a pull-down device, and each of the inverters includes a local interconnection layer, crossing the second diffusion region and the third diffusion region.

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Tainan, Taiwan

Po-Lin Chen