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

Method of forming a multiple implant lightly doped drain (MILDD) field
effect transistor
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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