METHODS FOR A GATE REPLACEMENT PROCESS
    1.
    发明申请
    METHODS FOR A GATE REPLACEMENT PROCESS 有权
    门更换过程的方法

    公开(公告)号:US20110081774A1

    公开(公告)日:2011-04-07

    申请号:US12575280

    申请日:2009-10-07

    IPC分类号: H01L21/28

    摘要: A method for fabricating a semiconductor device is disclosed. In one embodiment, the method may include providing a substrate; forming a gate structure including a first dummy gate over the substrate; removing the first dummy gate from the gate structure to form a trench; forming an interfacial layer, high-k dielectric layer, and capping layer to partially fill in the trench; forming a second dummy gate over the capping layer, wherein the second dummy gate fills the trench; and replacing the second dummy gate with a metal gate. In one embodiment, the method may include providing a substrate; forming an interfacial layer over the substrate; forming a high-k dielectric layer over the interfacial layer; forming an etch stop layer over the high-k dielectric layer; forming a capping layer including a low thermal budget silicon over the etch stop layer; forming a dummy gate layer over the capping layer; forming a gate structure; and performing a gate replacement process.

    摘要翻译: 公开了一种制造半导体器件的方法。 在一个实施例中,该方法可以包括提供衬底; 在所述衬底上形成包括第一虚拟栅极的栅极结构; 从栅极结构去除第一伪栅极以形成沟槽; 形成界面层,高k电介质层和覆盖层以部分地填充在沟槽中; 在所述覆盖层上形成第二虚拟栅极,其中所述第二伪栅极填充所述沟槽; 并用金属栅极替换第二虚拟栅极。 在一个实施例中,该方法可以包括提供衬底; 在衬底上形成界面层; 在界面层上形成高k电介质层; 在所述高k电介质层上形成蚀刻停止层; 在所述蚀刻停止层上形成包括低热预算硅的覆盖层; 在覆盖层上形成虚拟栅极层; 形成栅极结构; 并进行门更换处理。

    Methods for a gate replacement process
    2.
    发明授权
    Methods for a gate replacement process 有权
    门更换过程的方法

    公开(公告)号:US08367563B2

    公开(公告)日:2013-02-05

    申请号:US12575280

    申请日:2009-10-07

    IPC分类号: H01L21/3205

    摘要: A method for fabricating a semiconductor device is disclosed. In one embodiment, the method may include providing a substrate; forming a gate structure including a first dummy gate over the substrate; removing the first dummy gate from the gate structure to form a trench; forming an interfacial layer, high-k dielectric layer, and capping layer to partially fill in the trench; forming a second dummy gate over the capping layer, wherein the second dummy gate fills the trench; and replacing the second dummy gate with a metal gate. In one embodiment, the method may include providing a substrate; forming an interfacial layer over the substrate; forming a high-k dielectric layer over the interfacial layer; forming an etch stop layer over the high-k dielectric layer; forming a capping layer including a low thermal budget silicon over the etch stop layer; forming a dummy gate layer over the capping layer; forming a gate structure; and performing a gate replacement process.

    摘要翻译: 公开了一种制造半导体器件的方法。 在一个实施例中,该方法可以包括提供衬底; 在所述衬底上形成包括第一虚拟栅极的栅极结构; 从栅极结构去除第一伪栅极以形成沟槽; 形成界面层,高k电介质层和覆盖层以部分地填充在沟槽中; 在所述覆盖层上形成第二虚拟栅极,其中所述第二伪栅极填充所述沟槽; 并用金属栅极替换第二虚拟栅极。 在一个实施例中,该方法可以包括提供衬底; 在衬底上形成界面层; 在界面层上形成高k电介质层; 在所述高k电介质层上形成蚀刻停止层; 在所述蚀刻停止层上形成包括低热预算硅的覆盖层; 在覆盖层上形成虚拟栅极层; 形成栅极结构; 并进行门更换处理。

    Method of fabricating high-k/metal gate device
    4.
    发明授权
    Method of fabricating high-k/metal gate device 有权
    制造高k /金属栅极器件的方法

    公开(公告)号:US08334197B2

    公开(公告)日:2012-12-18

    申请号:US12639630

    申请日:2009-12-16

    IPC分类号: H01L21/4763

    摘要: The present disclosure provides a method that includes providing a semiconductor substrate; forming a gate structure over the semiconductor substrate, first gate structure including a dummy dielectric and a dummy gate disposed over the dummy dielectric; removing the dummy gate and the dummy dielectric from the gate structure thereby forming a trench; forming a high-k dielectric layer partially filling the trench; forming a barrier layer over the high-k dielectric layer partially filling the trench; forming an capping layer over the barrier layer partially filling the trench; performing an annealing process; removing the capping layer; forming a metal layer over the barrier layer filling in a remainder of the trench; and performing a chemical mechanical polishing (CMP) to remove the various layers outside the trench.

    摘要翻译: 本公开提供了一种方法,其包括提供半导体衬底; 在所述半导体衬底上形成栅极结构,所述第一栅极结构包括设置在所述虚拟电介质上的虚设电介质和虚设栅极; 从栅极结构去除伪栅极和虚设电介质,从而形成沟槽; 形成部分填充沟槽的高k电介质层; 在部分填充沟槽的高k电介质层上形成阻挡层; 在所述阻挡层上形成部分填充所述沟槽的覆盖层; 进行退火处理; 去除覆盖层; 在所述阻挡层上形成填充在所述沟槽的其余部分中的金属层; 并进行化学机械抛光(CMP)以去除沟槽外的各种层。

    METHOD OF FABRICATING HIGH-K/METAL GATE DEVICE
    5.
    发明申请
    METHOD OF FABRICATING HIGH-K/METAL GATE DEVICE 有权
    制造高K /金属栅极器件的方法

    公开(公告)号:US20110143529A1

    公开(公告)日:2011-06-16

    申请号:US12639630

    申请日:2009-12-16

    IPC分类号: H01L21/28

    摘要: The present disclosure provides a method that includes providing a semiconductor substrate; forming a gate structure over the semiconductor substrate, first gate structure including a dummy dielectric and a dummy gate disposed over the dummy dielectric; removing the dummy gate and the dummy dielectric from the gate structure thereby forming a trench; forming a high-k dielectric layer partially filling the trench; forming a barrier layer over the high-k dielectric layer partially filling the trench; forming an capping layer over the barrier layer partially filling the trench; performing an annealing process; removing the capping layer; forming a metal layer over the barrier layer filling in a remainder of the trench; and performing a chemical mechanical polishing (CMP) to remove the various layers outside the trench.

    摘要翻译: 本公开提供了一种方法,其包括提供半导体衬底; 在所述半导体衬底上形成栅极结构,所述第一栅极结构包括设置在所述虚拟电介质上的虚设电介质和虚设栅极; 从栅极结构去除伪栅极和虚设电介质,从而形成沟槽; 形成部分填充沟槽的高k电介质层; 在部分填充沟槽的高k电介质层上形成阻挡层; 在所述阻挡层上形成部分填充所述沟槽的覆盖层; 进行退火处理; 去除覆盖层; 在所述阻挡层上形成填充在所述沟槽的其余部分中的金属层; 并进行化学机械抛光(CMP)以去除沟槽外的各种层。