发明申请
US20080197420A1 Method for fabricating dual-gate semiconductor device 有权
双栅半导体器件制造方法

Method for fabricating dual-gate semiconductor device
摘要:
A method for fabricating a dual-gate semiconductor device. A preferred embodiment comprises forming a gate stack having a first portion and a second portion, the first portion and the second portion including a different composition of layers, forming photoresist structures on the gate stack to protect the material to be used for the gate structures, etching away a portion of the unprotected material, forming recesses adjacent to at least one of the gate structures in the substrate upon which the gate structures are disposed, and forming a source region and the drained region in the respective recesses. The remaining portions of the gate stack layers that are not a part of a gate structure are then removed. In a particularly preferred embodiment, an oxide is formed on the vertical sides of the gate structures prior to etching to create the source and drain regions.
公开/授权文献
信息查询
0/0