发明授权
US5998274A Method of forming a multiple implant lightly doped drain (MILDD) field
effect transistor
有权
形成多注入轻掺杂漏极(MILDD)场效应晶体管的方法
- 专利标题: Method of forming a multiple implant lightly doped drain (MILDD) field effect transistor
- 专利标题(中): 形成多注入轻掺杂漏极(MILDD)场效应晶体管的方法
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申请号: US172439申请日: 1998-10-14
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公开(公告)号: US5998274A公开(公告)日: 1999-12-07
- 发明人: Salman Akram , Akram Ditali
- 申请人: Salman Akram , Akram Ditali
- 申请人地址: ID Boise
- 专利权人: Micron Technology, Inc.
- 当前专利权人: Micron Technology, Inc.
- 当前专利权人地址: ID Boise
- 主分类号: H01L21/336
- IPC分类号: H01L21/336 ; H01L29/78 ; H01L21/265
摘要:
A multiple implant lightly doped drain ("MILDD") field effect transistor is disclosed. The transistor includes a channel, a gate, a dielectric structure that separates the gate from the channel, a source region and a drain region. The drain region has a first drain subregion, a second drain subregion and a third drain subregion. Each drain subregion has a dopant concentration that differs from that of the other two drain subregions. A method of forming the same is also disclosed.
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