![碳化硅半导体装置](/CN/2009/1/32/images/200910163147.jpg)
基本信息:
- 专利标题: 碳化硅半导体装置
- 专利标题(英):Method of manufacturing silicon carbide semiconductor device
- 申请号:CN200910163147.1 申请日:2008-03-14
- 公开(公告)号:CN101635313A 公开(公告)日:2010-01-27
- 发明人: 谷本智
- 申请人: 日产自动车株式会社
- 申请人地址: 日本神奈川县
- 专利权人: 日产自动车株式会社
- 当前专利权人: 日产自动车株式会社
- 当前专利权人地址: 日本神奈川县
- 代理机构: 北京林达刘知识产权代理事务所
- 代理人: 刘新宇; 陈立航
- 优先权: 2007-068572 2007.03.16 JP
- 分案原申请号: 200810084721X
- 主分类号: H01L29/78
- IPC分类号: H01L29/78 ; H01L29/423 ; H01L21/336
A MOS type SiC semiconductor device having high reliability and a longer lifespan against TDDB of a gate oxide film is disclosed. The semiconductor device includes a MOS (metal-oxide-semiconductor) structure having a silicon carbide (SiC) substrate, a polycrystalline Si gate electrode, a gate oxide film interposed between the SiC substrate and the polycrystalline Si gate electrode and formed by thermally oxidizing a surface of the SiC substrate, and an ohmic contact electrically contacted with the SiC substrate. The semiconductor device further includes a polycrystalline Si thermally-oxidized film formed by oxidizing a surface of the polycrystalline Si gate electrode. The gate oxide film has a thickness of 20 nm or less, advantageously 15 nm or less.
IPC结构图谱:
H | 电学 |
--H01 | 基本电气元件 |
----H01L | 半导体器件;其他类目未包含的电固体器件 |
------H01L29/00 | 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 |
--------H01L29/02 | .按其半导体本体的特征区分的 |
----------H01L29/68 | ..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 |
------------H01L29/70 | ...双极器件 |
--------------H01L29/762 | ....电荷转移器件 |
----------------H01L29/78 | .....由绝缘栅产生场效应的 |