Method of forming a CMOS transistor having ultra shallow source and drain regions
    2.
    发明授权
    Method of forming a CMOS transistor having ultra shallow source and drain regions 有权
    形成具有超浅源极和漏极区域的CMOS晶体管的方法

    公开(公告)号:US06521501B1

    公开(公告)日:2003-02-18

    申请号:US09310170

    申请日:1999-05-11

    IPC分类号: H01L21336

    摘要: A method of forming a CMOS structure, the method including the acts of: forming a gate structure over a substrate layer; forming a silicide layer over the substrate layer; forming shallow source/drain areas in the substrate layer; forming an oxide diffusion barrier layer over the structure; forming a metal absorption layer over the oxide diffusion barrier layer; and melting portions of the substrate layer directly overlying the shallow source/drain areas, thereby transforming the shallow source/drain areas into shallow source/drain regions. The act of melting includes the act of exposing the metal absorption layer to pulsed laser beams.

    摘要翻译: 一种形成CMOS结构的方法,所述方法包括以下动作:在衬底层上形成栅极结构; 在衬底层上形成硅化物层; 在衬底层中形成浅的源极/漏极区域; 在所述结构上形成氧化物扩散阻挡层; 在所述氧化物扩散阻挡层上形成金属吸收层; 并且将衬底层的部分直接覆盖在浅源极/漏极区域上,从而将浅的源极/漏极区域变换成浅的源极/漏极区域。 熔化的行为包括将金属吸收层暴露于脉冲激光束的行为。