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    • 4. 发明申请
    • Complementary metal-oxide-semiconductor transistor and method of manufacturing the same
    • 互补金属氧化物半导体晶体管及其制造方法
    • US20080042213A1
    • 2008-02-21
    • US11891337
    • 2007-08-10
    • Gab-Jin NamMyoung-Bum Lee
    • Gab-Jin NamMyoung-Bum Lee
    • H01L21/8238H01L29/94
    • H01L21/823842Y10S257/914
    • A CMOS transistor and a method of manufacturing the CMOS transistor are disclosed. An NMOS transistor is formed on a first region of a semiconductor substrate. A PMOS transistor is formed on a second region of a semiconductor substrate. The NMOS transistor includes a first gate conductive layer. The PMOS transistor includes a second gate conductive layer. The first gate conductive layer includes a metal having a nitrogen concentration increasing in a direction from a lower portion toward an upper portion. In addition, the metal has a work function of about 4.0 eV to about 4.3 eV. The third gate conductive layer includes a metal having a nitrogen concentration increasing in a direction from a lower portion toward an upper portion. In addition, the metal has a work function of about 4.7 eV to about 5.0 eV.
    • 公开了CMOS晶体管和制造CMOS晶体管的方法。 NMOS晶体管形成在半导体衬底的第一区域上。 PMOS晶体管形成在半导体衬底的第二区域上。 NMOS晶体管包括第一栅极导电层。 PMOS晶体管包括第二栅极导电层。 第一栅极导电层包括在从下部朝向上部的方向上氮浓度增加的金属。 此外,金属具有约4.0eV至约4.3eV的功函数。 第三栅极导电层包括在从下部朝向上部的方向上氮浓度增加的金属。 此外,金属具有约4.7eV至约5.0eV的功函数。
    • 5. 发明授权
    • Semiconductor device and method of manufacturing the same
    • 半导体装置及其制造方法
    • US07585756B2
    • 2009-09-08
    • US11839387
    • 2007-08-15
    • Gab-Jin NamMyoung-Bum Lee
    • Gab-Jin NamMyoung-Bum Lee
    • H01L21/3205
    • H01L21/28088H01L29/4966H01L29/78
    • A MOS transistor includes a substrate, source/drain regions formed at portions of the substrate, and a channel region formed between the source/drain regions. The MOS transistor further includes a gate structure having a gate insulation layer pattern and a gate electrode formed on the channel region. The gate electrode includes a first gate conductive layer pattern and a second gate conductive layer pattern. The first gate conductive layer pattern has a nitrogen concentration gradient gradually increasing from a lower portion of the first gate conductive layer pattern to an upper portion of the first gate conductive layer pattern. The second gate conductive layer pattern includes a material having a resistance substantially lower than a resistance of the first gate conductive layer pattern.
    • MOS晶体管包括衬底,形成在衬底的部分处的源极/漏极区域和形成在源极/漏极区域之间的沟道区域。 MOS晶体管还包括具有栅极绝缘层图案的栅极结构和形成在沟道区上的栅电极。 栅电极包括第一栅极导电层图案和第二栅极导电层图案。 第一栅极导电层图案具有从第一栅极导电层图案的下部逐渐增加到第一栅极导电层图案的上部的氮浓度梯度。 第二栅极导电层图案包括具有基本上低于第一栅极导电层图案的电阻的电阻的材料。