![用于纳米线CMOS技术的用于多栅极功函数的技术](/CN/2016/1/35/images/201610179034.jpg)
基本信息:
- 专利标题: 用于纳米线CMOS技术的用于多栅极功函数的技术
- 申请号:CN201610179034.0 申请日:2016-03-25
- 公开(公告)号:CN106024716B 公开(公告)日:2018-11-23
- 发明人: 张慎明 , M·A·圭罗恩 , I·劳尔 , J·W·斯莱特
- 申请人: 国际商业机器公司
- 申请人地址: 美国纽约阿芒克
- 专利权人: 国际商业机器公司
- 当前专利权人: 国际商业机器公司
- 当前专利权人地址: 美国纽约阿芒克
- 代理机构: 北京市金杜律师事务所
- 代理人: 酆迅; 张宁
- 优先权: 14/671,173 20150327 US
- 主分类号: H01L21/8238
- IPC分类号: H01L21/8238 ; H01L27/092
In one aspect, a method of forming a CMOS device with multiple transistors having different Vt's is provided which includes: forming nanowires and pads on a wafer, wherein the nanowires are suspended at varying heights above an oxide layer of the wafer; and forming gate stacks of the transistors at least partially surrounding portions of each of the nanowires by: i) depositing a conformal gate dielectric around the nanowires and on the wafer beneath the nanowires; ii) depositing a conformal workfunction metal on the conformal gate dielectric around the nanowires and on the wafer beneath the nanowires, wherein an amount of the conformal workfunction metal deposited around the nanowires is varied based on the varying heights at which the nanowires are suspended over the oxide layer; and iii) depositing a conformal poly-silicon layer on the conformal workfunction metal around the nanowires and on the wafer beneath the nanowires.
公开/授权文献:
- CN106024716A 用于纳米线CMOS技术的用于多栅极功函数的技术 公开/授权日:2016-10-12
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 |
------H01L21/00 | 专门适用于制造或处理半导体或固体器件或其部件的方法或设备 |
--------H01L21/67 | .专门适用于在制造或处理过程中处理半导体或电固体器件的装置;专门适合于在半导体或电固体器件或部件的制造或处理过程中处理晶片的装置 |
----------H01L21/71 | ..限定在组H01L21/70中的器件的特殊部件的制造 |
------------H01L21/78 | ...把衬底连续地分成多个独立的器件 |
--------------H01L21/782 | ....制造多个器件,每一个由单个电路元件组成 |
----------------H01L21/822 | .....衬底是采用硅工艺的半导体的 |
------------------H01L21/8222 | ......双极工艺 |
--------------------H01L21/8234 | .......MIS工艺 |
----------------------H01L21/8238 | ........互补场效应晶体管,例如CMOS |