MASKLESS STRESS MEMORIZATION TECHNIQUE FOR CMOS DEVICES
    17.
    发明申请
    MASKLESS STRESS MEMORIZATION TECHNIQUE FOR CMOS DEVICES 审中-公开
    CMOS器件的无缝应力记忆技术

    公开(公告)号:US20090142891A1

    公开(公告)日:2009-06-04

    申请号:US11948849

    申请日:2007-11-30

    IPC分类号: H01L21/8238

    摘要: In one embodiment, the present invention provides a method of manufacturing a semiconducting device that includes providing a silicon containing substrate having PFET device and NFET device, wherein the NFET device includes an amorphous silicon containing region; depositing a tensile strain silicon nitride layer atop the NFET device and the PFET device, wherein the silicon nitride tensile strain layer induces a tensile strain in a channel of the NFET device region; annealing to crystallize the amorphous silicon containing region, wherein the tensile strain silicon nitride layer positioned atop the PFET device confines oxygen within a channel positioned within the silicon containing substrate underlying the PFET device, wherein the oxygen within the channel shifts a threshold voltage of the PFET device towards a valence band of silicon of the silicon containing substrate; and removing the tensile strain silicon nitride layer.

    摘要翻译: 在一个实施例中,本发明提供一种制造半导体器件的方法,其包括提供具有PFET器件和NFET器件的含硅衬底,其中所述NFET器件包括非晶硅含硅区域; 在NFET器件和PFET器件的顶部沉积拉伸应变氮化硅层,其中氮化硅拉伸应变层在NFET器件区域的沟道中引起拉伸应变; 退火以使非晶硅含有区域结晶,其中位于PFET器件顶部的拉伸应变氮化硅层将氧气限制在位于PFET器件下面的含硅衬底内的通道内,其中通道内的氧漂移PFET的阈值电压 朝向含硅衬底的硅的价带的器件; 并去除拉伸应变氮化硅层。

    SOI FinFET with recessed merged Fins and liner for enhanced stress coupling
    20.
    发明授权
    SOI FinFET with recessed merged Fins and liner for enhanced stress coupling 失效
    SOI FinFET具有凹入的合并Fins和衬垫,用于增强应力耦合

    公开(公告)号:US08445334B1

    公开(公告)日:2013-05-21

    申请号:US13330746

    申请日:2011-12-20

    IPC分类号: H01L21/00 H01L21/84

    摘要: FinFETS and methods for making FinFETs with a recessed stress liner. A method includes providing an SOI substrate with fins, forming a gate over the fins, forming an off-set spacer on the gate, epitaxially growing a film to merge the fins, depositing a dummy spacer around the gate, and recessing the merged epi film. Silicide is then formed on the recessed merged epi film followed by deposition of a stress liner film over the FinFET. By using a recessed merged epi process, a MOSFET with a vertical silicide (i.e. perpendicular to the substrate) can be formed. The perpendicular silicide improves spreading resistance.

    摘要翻译: FinFET和用于制造具有凹陷应力衬垫的FinFET的方法。 一种方法包括向SOI衬底提供翅片,在鳍片上形成栅极,在栅极上形成偏置间隔物,外延生长膜以合并鳍片,在栅极周围沉积虚拟间隔物,并使合并的膜片膜凹陷 。 然后在凹陷的合并epi膜上形成硅化物,然后在FinFET上沉积应力衬垫膜。 通过使用凹入的合并epi工艺,可以形成具有垂直硅化物(即垂直于衬底)的MOSFET。 垂直硅化物提高了耐扩散性。