Semiconductor device and method for manufacturing the same

A thin film transistor using an oxide semiconductor is to increase electric field effect mobility. Moreover, even if the electric field effect mobility of the thin film transistor is increased, the thin film transistor is to suppress an increase of an off current. In the thin film transistor using a...

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Bibliographic Details
Main Authors AKIMOTO KENGO, SASAKI TOSHINARI
Format Patent
LanguageEnglish
Korean
Published 03.03.2022
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Summary:A thin film transistor using an oxide semiconductor is to increase electric field effect mobility. Moreover, even if the electric field effect mobility of the thin film transistor is increased, the thin film transistor is to suppress an increase of an off current. In the thin film transistor using an oxide semiconductor layer, a semiconductor layer having higher electrical conductivity than the oxide semiconductor layer and a thin film thickness is formed between the oxide semiconductor layer and a gate insulating layer, the electric field effect mobility of the thin film transistor is increased and an increase of an off current can also be suppressed. 산화물 반도체를 사용한 박막 트랜지스터에 있어서, 전계 효과 이동도를 향상시키는 것을 과제의 하나로 한다. 또한, 박막 트랜지스터의 전계 효과 이동도를 향상시키더라도, 오프 전류의 증대를 억제하는 것을 과제의 하나로 한다. 산화물 반도체층을 사용한 박막 트랜지스터에 있어서, 산화물 반도체층과 게이트 절연층의 사이에, 상기 산화물 반도체층보다 도전율이 높고, 막 두께가 얇은 반도체층을 형성함으로써, 상기 박막 트랜지스터의 전계 효과 이동도를 향상시켜, 또한 오프 전류의 증대를 억제할 수 있다.
Bibliography:Application Number: KR20220020701