Nitridated gate dielectric layer
    11.
    发明申请
    Nitridated gate dielectric layer 审中-公开
    氮化栅介质层

    公开(公告)号:US20060275975A1

    公开(公告)日:2006-12-07

    申请号:US11142488

    申请日:2005-06-01

    CPC classification number: H01L21/823857 H01L21/823842 H01L29/785

    Abstract: A metal-oxide-semiconductor field-effect transistors (MOSFET) with a gate structure having a deuterated layer is provided. In accordance with embodiments of the present invention, a transistor comprises the deuterated layer formed over a gate dielectric layer. A gate electrode is formed over the deuterated layer. The deuterated layer prevents or reduces dopant penetration into a substrate from the gate electrode. The deuterated layer may be, for example, formed by a thermal process in an ambient of a deuterated gas, such as deuterated ammonia. The deuterated layer may also be formed by a nitridation process using deuterated ammonia.

    Abstract translation: 提供具有氘代层的栅极结构的金属氧化物半导体场效应晶体管(MOSFET)。 根据本发明的实施例,晶体管包括在栅介电层上形成的氘化层。 在氘化层上形成栅电极。 氘化层防止或减少掺杂剂从栅电极渗透到衬底中。 氘化层可以例如通过氘化气体的环境中的热过程形成,例如氘代氨。 氘化层也可以通过使用氘代氨的氮化方法形成。

    Hybrid Process for Forming Metal Gates
    12.
    发明申请
    Hybrid Process for Forming Metal Gates 有权
    用于形成金属门的混合工艺

    公开(公告)号:US20110001194A1

    公开(公告)日:2011-01-06

    申请号:US12883241

    申请日:2010-09-16

    Abstract: A semiconductor structure and methods for forming the same are provided. The semiconductor structure includes a first MOS device of a first conductivity type and a second MOS device of a second conductivity type opposite the first conductivity type. The first MOS device includes a first gate dielectric on a semiconductor substrate; a first metal-containing gate electrode layer over the first gate dielectric; and a silicide layer over the first metal-containing gate electrode layer. The second MOS device includes a second gate dielectric on the semiconductor substrate; a second metal-containing gate electrode layer over the second gate dielectric; and a contact etch stop layer having a portion over the second metal-containing gate electrode layer, wherein a region between the portion of the contact etch stop layer and the second metal-containing gate electrode layer is substantially free from silicon.

    Abstract translation: 提供半导体结构及其形成方法。 半导体结构包括第一导电类型的第一MOS器件和与第一导电类型相反的第二导电类型的第二MOS器件。 第一MOS器件包括在半导体衬底上的第一栅极电介质; 在所述第一栅极电介质上的第一含金属的栅电极层; 以及位于第一含金属栅电极层上的硅化物层。 第二MOS器件包括半导体衬底上的第二栅极电介质; 在所述第二栅极电介质上方的第二含金属的栅电极层; 以及具有位于所述第二含金属栅电极层上的部分的接触蚀刻停止层,其中所述接触蚀刻停止层的所述部分和所述第二含金属栅电极层之间的区域基本上不含硅。

    Hybrid process for forming metal gates
    13.
    发明授权
    Hybrid process for forming metal gates 有权
    用于形成金属门的混合工艺

    公开(公告)号:US07812414B2

    公开(公告)日:2010-10-12

    申请号:US11656711

    申请日:2007-01-23

    Abstract: A semiconductor structure and methods for forming the same are provided. The semiconductor structure includes a first MOS device of a first conductivity type and a second MOS device of a second conductivity type opposite the first conductivity type. The first MOS device includes a first gate dielectric on a semiconductor substrate; a first metal-containing gate electrode layer over the first gate dielectric; and a silicide layer over the first metal-containing gate electrode layer. The second MOS device includes a second gate dielectric on the semiconductor substrate; a second metal-containing gate electrode layer over the second gate dielectric; and a contact etch stop layer having a portion over the second metal-containing gate electrode layer, wherein a region between the portion of the contact etch stop layer and the second metal-containing gate electrode layer is substantially free from silicon.

    Abstract translation: 提供半导体结构及其形成方法。 半导体结构包括第一导电类型的第一MOS器件和与第一导电类型相反的第二导电类型的第二MOS器件。 第一MOS器件包括在半导体衬底上的第一栅极电介质; 在所述第一栅极电介质上的第一含金属的栅电极层; 以及位于第一含金属栅电极层上的硅化物层。 第二MOS器件包括半导体衬底上的第二栅极电介质; 在所述第二栅极电介质上方的第二含金属的栅电极层; 以及具有位于所述第二含金属栅电极层上的部分的接触蚀刻停止层,其中所述接触蚀刻停止层的所述部分和所述第二含金属栅电极层之间的区域基本上不含硅。

    Method of forming integrated circuit devices having n-MOSFET and p-MOSFET transistors with elevated and silicided source/drain structures

    公开(公告)号:US07465634B2

    公开(公告)日:2008-12-16

    申请号:US11583500

    申请日:2006-10-18

    Abstract: An n-FET and a p-FET each have elevated source/drain structures. Optionally, the p-FET elevated-SOURCE/DRAIN structure is epitaxially grown from a p-FET recess formed in the substrate. Optionally, the n-FET elevated-SOURCE/DRAIN structure is epitaxially grown from an n-FET recess formed in the substrate. The n-FET and p-FET elevated-source/drain structures are both silicided, even though the structures may have different materials and/or different structure heights. At least a thermal treatment portion of the source/drain structure siliciding is performed simultaneously for the n-FET and p-FET elevated source/drain structures. Also, the p-FET gate electrode, the n-FET gate electrode, or both, may optionally be silicided simultaneously (same metal and/or same thermal treatment step) with the n-FET and p-FET elevated-source/drain structures, respectively; even though the gate electrodes may have different materials, different silicide metal, and/or different electrode heights. The silicides formed on n-FET and p-FET elevated-source/drain structures preferably do not extend below a top surface of the substrate more than about 250 angstroms; and the structure heights may be selected to provide this.

    Semiconductor devices and methods with bilayer dielectrics
    18.
    发明授权
    Semiconductor devices and methods with bilayer dielectrics 有权
    具有双层电介质的半导体器件和方法

    公开(公告)号:US07531399B2

    公开(公告)日:2009-05-12

    申请号:US11532308

    申请日:2006-09-15

    Abstract: A semiconductor device is disclosed that includes: a substrate; a first high-k dielectric layer; a second high-k dielectric layer formed of a different high-k material; and a metal gate. In another form, a method of forming a semiconductor device is disclosed that includes: providing a substrate; forming a first high-k dielectric layer above the substrate; forming a second dielectric layer of a different high-k material above the first dielectric layer; and forming a gate structure above the second dielectric layer. In yet another form, a method of forming a semiconductor device is disclosed that includes: providing a substrate; forming an interfacial layer above the substrate; forming a first high-k dielectric layer above the interfacial layer; performing a nitridation technique; performing an anneal; forming a second high-k dielectric layer of a different high-k material above the first dielectric layer; and forming a metal gate structure above the second dielectric layer.

    Abstract translation: 公开了一种半导体器件,包括:衬底; 第一高k电介质层; 由不同的高k材料形成的第二高k电介质层; 和金属门。 在另一种形式中,公开了一种形成半导体器件的方法,包括:提供衬底; 在所述衬底上形成第一高k电介质层; 在所述第一介电层上形成不同高k材料的第二电介质层; 以及在所述第二电介质层上形成栅极结构。 在另一种形式中,公开了一种形成半导体器件的方法,其包括:提供衬底; 在基底上形成界面层; 在界面层上形成第一高k电介质层; 进行氮化技术; 进行退火; 在所述第一介电层上形成不同高k材料的第二高k电介质层; 以及在所述第二电介质层上方形成金属栅极结构。

    Hybrid process for forming metal gates
    19.
    发明申请
    Hybrid process for forming metal gates 有权
    用于形成金属门的混合工艺

    公开(公告)号:US20080173947A1

    公开(公告)日:2008-07-24

    申请号:US11656711

    申请日:2007-01-23

    Abstract: A semiconductor structure and methods for forming the same are provided. The semiconductor structure includes a first MOS device of a first conductivity type and a second MOS device of a second conductivity type opposite the first conductivity type. The first MOS device includes a first gate dielectric on a semiconductor substrate; a first metal-containing gate electrode layer over the first gate dielectric; and a silicide layer over the first metal-containing gate electrode layer. The second MOS device includes a second gate dielectric on the semiconductor substrate; a second metal-containing gate electrode layer over the second gate dielectric; and a contact etch stop layer having a portion over the second metal-containing gate electrode layer, wherein a region between the portion of the contact etch stop layer and the second metal-containing gate electrode layer is substantially free from silicon.

    Abstract translation: 提供半导体结构及其形成方法。 半导体结构包括第一导电类型的第一MOS器件和与第一导电类型相反的第二导电类型的第二MOS器件。 第一MOS器件包括在半导体衬底上的第一栅极电介质; 在所述第一栅极电介质上的第一含金属的栅电极层; 以及位于第一含金属栅电极层上的硅化物层。 第二MOS器件包括半导体衬底上的第二栅极电介质; 在所述第二栅极电介质上方的第二含金属的栅电极层; 以及具有位于所述第二含金属栅电极层上的部分的接触蚀刻停止层,其中所述接触蚀刻停止层的所述部分和所述第二含金属栅电极层之间的区域基本上不含硅。

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