Semiconductor device having an insulating layer and method for forming
    2.
    发明授权
    Semiconductor device having an insulating layer and method for forming 失效
    具有绝缘层的半导体器件及其形成方法

    公开(公告)号:US06908822B2

    公开(公告)日:2005-06-21

    申请号:US10662832

    申请日:2003-09-15

    摘要: An insulating layer (24, 66, 82) is formed over a stack (14) of materials and a semiconductor substrate (12) and an implant is performed through the insulating layer into the semiconductor substrate. In one embodiment, spacers (26) are formed over the insulating layer (24), the insulating layer (24) is etched, and heavily doped regions (36) are formed adjacent the spacers. The spacers (26) are then removed and extension regions (50) and optional halo regions (46) are formed by implanting through the insulating layer (24). In one embodiment, the insulating layer (24) is in contact with the semiconductor substrate (12). In one embodiment, the stack (14) is a gate stack including a gate dielectric (18), a gate electrode (16), and an optional capping layer (22). The insulating layer (24, 66, 82) may include nitrogen, such as silicon nitride and aluminum nitride. In another embodiment, the insulating layer (24, 66, 82) may be hafnium oxide.

    摘要翻译: 在材料的堆叠(14)和半导体衬底(12)上形成绝缘层(24,66,82),并且通过绝缘层将注入物执行到半导体衬底中。 在一个实施例中,间隔物(26)形成在绝缘层(24)之上,绝缘层(24)被蚀刻,并且在间隔物附近形成重掺杂区域(36)。 然后移除间隔件(26),并且通过注入绝缘层(24)形成延伸区域(50)和可选的卤素区域(46)。 在一个实施例中,绝缘层(24)与半导体衬底(12)接触。 在一个实施例中,堆叠(14)是包括栅极电介质(18),栅极电极(16)和可选的封盖层(22)的栅极堆叠。 绝缘层(24,66,82)可以包括氮,例如氮化硅和氮化铝。 在另一个实施例中,绝缘层(24,66,82)可以是氧化铪。