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1. (US20140326998) Transistor having tapered gate electrode

专利局 : 美国
申请号: 14334099 申请日: 17.07.2014
公布号: 20140326998 公布日: 06.11.2014
授权号: 09312393 授权日: 12.04.2016
公布类型: B2
国际专利分类:
H01L 29/786
H01L 29/417
H 电学
01
基本电气元件
L
半导体器件;其他类目中不包括的电固体器件
29
专门适用于整流、放大、振荡或切换,并具有至少一个电位跃变势垒或表面势垒的半导体器件;具有至少一个电位跃变势垒或表面势垒,例如PN结耗尽层或载流子集结层的电容器或电阻器;半导体本体或其电极的零部件
66
按半导体器件的类型区分的
68
只能通过对一个不通有待整流、放大或切换的电流的电极供给电流或施加电位方可进行控制的
76
单极器件
772
场效应晶体管
78
由绝缘栅产生场效应的
786
薄膜晶体管
H 电学
01
基本电气元件
L
半导体器件;其他类目中不包括的电固体器件
29
专门适用于整流、放大、振荡或切换,并具有至少一个电位跃变势垒或表面势垒的半导体器件;具有至少一个电位跃变势垒或表面势垒,例如PN结耗尽层或载流子集结层的电容器或电阻器;半导体本体或其电极的零部件
40
按其电极特征区分的
41
以其形状、相对尺寸或位置为特征的
417
通有待整流、放大或切换电流的
申请人: Semiconductor Energy Laboratory Co., Ltd.
发明人: Tatsuya Honda
代理人: Husch Blackwell LLP
优先权数据: 2005-300825 14.10.2005 JP
标题: (EN) Transistor having tapered gate electrode
摘要: front page image
(EN)

An object is to obtain a semiconductor device with improved characteristics by reducing contact resistance of a semiconductor film with electrodes or wirings, and improving coverage of the semiconductor film and the electrodes or wirings. The present invention relates to a semiconductor device including a gate electrode over a substrate, a gate insulating film over the gate electrode, a first source or drain electrode over the gate insulating film, an island-shaped semiconductor film over the first source or drain electrode, and a second source or drain electrode over the island-shaped semiconductor film and the first source or drain electrode. Further, the second source or drain electrode is in contact with the first source or drain electrode, and the island-shaped semiconductor film is sandwiched between the first source or drain electrode and the second source or drain electrode. Moreover, the present invention relates to a manufacturing method of the semiconductor device.


也发表为:
US20100264420US20120097964