FINFET HYBRID FULL METAL GATE WITH BORDERLESS CONTACTS
    9.
    发明申请
    FINFET HYBRID FULL METAL GATE WITH BORDERLESS CONTACTS 审中-公开
    FINFET混合全金属门与无边界联系

    公开(公告)号:US20140162447A1

    公开(公告)日:2014-06-12

    申请号:US13709250

    申请日:2012-12-10

    IPC分类号: H01L21/28

    CPC分类号: H01L29/66795 H01L29/41791

    摘要: A method for fabricating a field effect transistor device includes patterning a fin on substrate, patterning a gate stack over a portion of the fin and a portion of an insulator layer arranged on the substrate, forming a protective barrier over the gate stack, a portion of the fin and a portion of the insulator layer, the protective barrier enveloping the gate stack, depositing a second insulator layer over portions of the fin and the protective barrier, performing a first etching process to selectively remove portions of the second insulator layer to define cavities that expose portions of source and drain regions of the fin without appreciably removing the protective barrier, and depositing a conductive material in the cavities.

    摘要翻译: 一种用于制造场效应晶体管器件的方法,包括对衬底上的翅片进行图案化,在栅极堆叠的一部分上构图栅极堆叠,以及布置在衬底上的绝缘体层的一部分,在栅极叠层上形成保护屏障, 所述翅片和所述绝缘体层的一部分,所述保护屏障包围所述栅极堆叠,在所述鳍片和所述保护屏障的部分上沉积第二绝缘体层,执行第一蚀刻工艺以选择性地去除所述第二绝缘体层的部分以限定空腔 其暴露鳍片的源极和漏极区域的部分,而不明显地去除保护屏障,以及在空腔中沉积导电材料。