Taiwan Semiconductor Manufacturing Comp. Ltd.

Chin Wei Kuo

Chewn-Pu Jou

Chia-Chung Chen

Sally Liu

In at least one embodiment, a method of manufacturing a varactor includes forming a well over a substrate. The well has a first type doping. A first source region and a second source region are formed in the well, and the first source region and the second source region have a second type doping. A drain region is formed in the well, and the drain region has the first type doping. A first gate region is formed over the well between the drain region and the first source region. Moreover, a second gate region is formed over the well between the drain region and the second source region.

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Zhubei, Taiwan

Chin Wei Kuo