United Microelectronics Corp.

Hsuan-Po Liao

Chih-Chung Wang

Chiu-Te Lee

Ke-Feng Lin

Ming-Shun Hsu

Shih-Teng Huang

Shih-Yin Hsiao

Shu-Wen Lin

Chiu-Ling Lee

Wei-Lin Chen

Su-Hwa Tsai

A diode structure includes a rectangular first doping region, and a second doping region surrounds the first doping region wherein the first doping region and the second doping region are separated by a first isolation structure. A third doping region surrounds the second doping region wherein the second doping region and the third doping region are separated by a second isolation structure. The first isolation structure, the second doping region, the second isolation structure and the third doping region are arranged in a quadruple concentric rectangular ring surrounding the first doping region.

Diode structure

A semiconductor structure is provided. The semiconductor structure comprises a substrate, a deep well formed in the substrate, a first well and a second well formed in the deep well, a gate electrode formed on the substrate and disposed between the first well and the second well, a first isolation, and a second isolation. The second well is spaced apart from the first well. The first isolation extends down from the surface of the substrate and is disposed between the gate electrode and the second well. The second isolation extends down from the surface of the substrate and is adjacent to the first well. A ratio of a depth of the first isolation to a depth of the second isolation is smaller than 1.

Semiconductor structure

A power array with a staggered arrangement for improving on-resistance and safe operating area of a device is provided. Each power array includes two or more rows with a plurality of parallel device units arranged along the row. Each device unit includes a source region, a drain region, and a gate disposed between the source region and the drain region, wherein each drain region is offset from the adjacent drain region of adjacent rows in a row direction.

Power array with staggered arrangement for improving on-resistance and safe operating area

Growing community of inventors

Hsinchu County, Taiwan

Hsuan-Po Liao