United Microelectronics Corp.

Shou-Wan Huang

Chun-Hsien Lin

Kuan-Hua Su

A method for fabricating semiconductor device includes the steps of providing a substrate having a first region and a second region, forming a first fin-shaped structure on the first region, removing part of the first fin-shaped structure to form a first trench, forming a dielectric layer in the first trench to form a double diffusion break (DDB) structure, forming a first gate structure and a second gate structure on the DDB structure as a bottom surface of the first gate structure is lower than a top surface of the first fin-shaped structure, and forming a contact plug between the first gate structure and the second gate structure on the DDB structure.

Semiconductor device and method for fabricating the same

A semiconductor device includes a substrate having a first region and a second region, a first fin-shaped structure extending along a first direction on the first region, a double diffusion break (DDB) structure extending along a second direction to divide the first fin-shaped structure into a first portion and a second portion, and a first gate structure and a second gate structure extending along the second direction on the DDB structure.

A method for fabricating semiconductor device includes the steps of: providing a substrate having a first region and a second region; forming a first fin-shaped structure on the first region; removing part of the first fin-shaped structure to form a first trench; forming a dielectric layer in the first trench to form a double diffusion break (DDB) structure; and forming a first gate structure and a second gate structure on the DDB structure. Preferably, a bottom surface of the first gate structure is lower than a top surface of the first fin-shaped structure.

A photoresist coating process including a first step and a second step is provided. In the first step, a wafer is accelerated by a first average acceleration. In the second step, the wafer is accelerated by a second average acceleration. The first acceleration and the second acceleration are both larger than zero, and photoresist material is provided to the wafer only in the second step.

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Hsinchu, Taiwan

Shou-Wan Huang