Invention Grant
US09136268B2 Semiconductor device and semiconductor memory device including capacitor 有权
半导体器件和包括电容器的半导体存储器件

Semiconductor device and semiconductor memory device including capacitor
Abstract:
A semiconductor device includes: a second transistor having a second conductive type formed on a first well region having a first conductive type; a first transistor having a first conductive type formed on a second well region having a second conductive type; a first well guard ring having the first conductive type, the first well guard ring including at least a first portion formed between the first transistor and the second transistor; a second well guard ring having the first conductive type, the second well guard ring including at least a first portion formed between the first transistor and the second transistor; and a first capacitor formed on at least one of the first well region and the second well region, and located between the first portion of the first well guard ring and the first portion of the second well guard ring.
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