Transistor including flatband voltage control through interface dipole engineering
    85.
    发明申请
    Transistor including flatband voltage control through interface dipole engineering 审中-公开
    晶体管包括通过接口偶极工程的平带电压控制

    公开(公告)号:US20070158702A1

    公开(公告)日:2007-07-12

    申请号:US11322827

    申请日:2005-12-30

    IPC分类号: H01L29/76 H01L29/94 H01L31/00

    CPC分类号: H01L29/785 H01L29/4908

    摘要: A transistor comprising a semiconductor including a source, a drain, and a channel interposed between the source and the drain; a first dielectric layer having a first thickness, the first dielectric layer being positioned on the channel; a second dielectric layer having a second thickness, the second dielectric layer being positioned on the first dielectric layer; and a gate electrode on the second dielectric layer, wherein the transistor gate is made of a mid-gap metal. A process comprising depositing a first dielectric layer on at least one surface of a semiconductor layer; depositing a second dielectric layer on the first dielectric layer; depositing a layer of mid-gap metal on the second dielectric layer; and patterning and etching the first dielectric layer, the second dielectric layer and the layer of mid-gap metal to create a gate electrode separated from the substrate by a first dielectric and a second dielectric. Other embodiments are disclosed and claimed.

    摘要翻译: 一种晶体管,包括:半导体,包括源极,漏极和介于源极和漏极之间的沟道; 具有第一厚度的第一介电层,所述第一介电层位于所述通道上; 具有第二厚度的第二介电层,所述第二介电层位于所述第一介电层上; 以及第二介质层上的栅电极,其中晶体管栅极由中间间隙金属制成。 一种方法,包括在半导体层的至少一个表面上沉积第一介电层; 在所述第一电介质层上沉积第二电介质层; 在所述第二电介质层上沉积中间间隙金属层; 以及对第一电介质层,第二电介质层和中间间隙金属层进行图案化和蚀刻以产生通过第一电介质和第二电介质与衬底分离的栅电极。 公开和要求保护其他实施例。

    DEVICE WITH SCAVENGING SPACER LAYER
    86.
    发明申请
    DEVICE WITH SCAVENGING SPACER LAYER 有权
    装置与SCAVENGING间隔层

    公开(公告)号:US20070145498A1

    公开(公告)日:2007-06-28

    申请号:US11320305

    申请日:2005-12-27

    IPC分类号: H01L29/94

    摘要: Embodiments of the invention provide a device with a metal gate, a high-k gate dielectric layer and reduced oxidation of a substrate beneath the high-k gate dielectric layer. An oxygen-scavenging spacer layer on side walls of the high-k gate dielectric layer and metal gate may reduce such oxidation during high temperature processes.

    摘要翻译: 本发明的实施例提供一种具有金属栅极,高k栅极电介质层和在高k栅极电介质层下面的衬底的氧化减少的器件。 在高k栅极电介质层和金属栅极的侧壁上的氧气清除间隔层可以在高温过程中减少这种氧化。

    PRECISE PATTERNING OF HIGH-K FILMS
    89.
    发明申请
    PRECISE PATTERNING OF HIGH-K FILMS 有权
    精密图案的高K片

    公开(公告)号:US20050026451A1

    公开(公告)日:2005-02-03

    申请号:US10632470

    申请日:2003-08-01

    CPC分类号: H01L21/28123 H01L21/31111

    摘要: A high-K thin film patterning solution is disclosed to address structural and process limitations of conventional patterning techniques. Subsequent to formation of gate structures adjacent a high-K dielectric layer, a portion of the high-K dielectric layer material is reduced, preferably via exposure to hydrogen gas, to form a reduced portion of the high-K dielectric layer. The reduced portion may be selectively removed utilizing wet etch chemistries to leave behind a trench of desirable geometric properties.

    摘要翻译: 公开了一种高K薄膜图形解决方案,以解决常规图案化技术的结构和工艺限制。 在与高K电介质层相邻形成栅极结构之后,优选通过暴露于氢气来降低高K电介质层材料的一部分,以形成高K电介质层的减少的部分。 可以使用湿蚀刻化学物质选择性地去除还原部分,以留下所需几何性质的沟槽。