Direct contact between high-κ/metal gate and wiring process flow
    1.
    发明授权
    Direct contact between high-κ/metal gate and wiring process flow 有权
    高金属栅极/接线工艺流程之间的直接接触

    公开(公告)号:US07863123B2

    公开(公告)日:2011-01-04

    申请号:US12355953

    申请日:2009-01-19

    IPC分类号: H01L21/336

    摘要: A low resistance contact is formed to a metal gate or a transistor including a High-κ gate dielectric in a high integration density integrated circuit by applying a liner over a gate stack, applying a fill material between the gate stacks, planarizing the fill material to support high-resolution lithography, etching the fill material and the liner selectively to each other to form vias and filling the vias with a metal, metal alloy or conductive metal compound such as titanium nitride.

    摘要翻译: 低电阻触点形成于金属栅极或包括高电平的晶体管。 通过在栅极堆叠上施加衬垫,在栅极叠层之间施加填充材料,平坦化填充材料以支持高分辨率光刻,相互选择性地蚀刻填充材料和衬垫,从而在高集成度密度集成电路中形成栅极电介质 形成通孔并用金属,金属合金或诸如氮化钛的导电金属化合物填充通孔。