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    • 5. 发明授权
    • High performance CMOS device structure with mid-gap metal gate
    • 高性能CMOS器件结构,具有中间间隙金属栅极
    • US06916698B2
    • 2005-07-12
    • US10795672
    • 2004-03-08
    • Anda C. MocutaMeikei IeongRicky S. AmosDiane C. BoydDan M. MocutaHuajie Chen
    • Anda C. MocutaMeikei IeongRicky S. AmosDiane C. BoydDan M. MocutaHuajie Chen
    • H01L29/423H01L21/8238H01L27/092H01L29/49
    • H01L21/823807H01L21/823828
    • High performance (surface channel) CMOS devices with a mid-gap work function metal gate are disclosed wherein an epitaxial layer is used for a threshold voltage Vt adjust/decrease for the PFET area, for large Vt reductions (˜500 mV), as are required by CMOS devices with a mid-gap metal gate. The present invention provides counter doping using an in situ B doped epitaxial layer or a B and C co-doped epitaxial layer, wherein the C co-doping provides an additional degree of freedom to reduce the diffusion of B (also during subsequent activation thermal cycles) to maintain a shallow B profile, which is critical to provide a surface channel CMOS device with a mid-gap metal gate while maintaining good short channel effects. The B diffusion profiles are satisfactorily shallow, sharp and have a high B concentration for devices with mid-gap metal gates, to provide and maintain a thin, highly doped B layer under the gate oxide.
    • 公开了具有中间间隙功函数金属栅极的高性能(表面沟道)CMOS器件,其中外延层用于PFET区域的阈值电压Vt调整/减小,用于大的Vt降低(〜500mV),如 需要具有中间间隙金属栅极的CMOS器件。 本发明提供了使用原位B掺杂外延层或B和C共掺杂外延层的反掺杂,其中C共掺杂提供了额外的自由度以减少B的扩散(也在随后的激活热循环期间) )以保持浅的B剖面,这对于提供具有中间间隙金属栅极的表面沟道CMOS器件而言是至关重要的,同时保持良好的短沟道效应。 对于具有中间间隙金属栅极的器件,B扩散曲线令人满意地浅,尖锐且具有高B浓度,以在栅极氧化物下提供并保持薄的高掺杂B层。
    • 6. 发明授权
    • High performance CMOS device structure with mid-gap metal gate
    • 高性能CMOS器件结构,具有中间间隙金属栅极
    • US06762469B2
    • 2004-07-13
    • US10127196
    • 2002-04-19
    • Anda C. MocutaMeikei IeongRicky S. AmosDiane C. BoydDan M. MocutaHuajie Chen
    • Anda C. MocutaMeikei IeongRicky S. AmosDiane C. BoydDan M. MocutaHuajie Chen
    • H01L2976
    • H01L21/823807H01L21/823828
    • High performance (surface channel) CMOS devices with a mid-gap work function metal gate are disclosed wherein an epitaxial layer is used for a threshold voltage Vt adjust/decrease for the PFET area, for large Vt reductions (˜500 mV), as are required by CMOS devices with a mid-gap metal gate. The present invention provides counter doping using an in situ B doped epitaxial layer or a B and C co-doped epitaxial layer, wherein the C co-doping provides an additional degree of freedom to reduce the diffusion of B (also during subsequent activation thermal cycles) to maintain a shallow B profile, which is critical to provide a surface channel CMOS device with a mid-gap metal gate while maintaining good short channel effects. The B diffusion profiles are satisfactorily shallow, sharp and have a high B concentration for devices with mid-gap metal gates, to provide and maintain a thin, highly doped B layer under the gate oxide.
    • 公开了具有中间间隙功函数金属栅极的高性能(表面沟道)CMOS器件,其中外延层用于PFET区域的阈值电压Vt调整/减小,用于大的Vt降低(〜500mV),如 需要具有中间间隙金属栅极的CMOS器件。 本发明提供了使用原位B掺杂外延层或B和C共掺杂外延层的反掺杂,其中C共掺杂提供了额外的自由度以减少B的扩散(也在随后的激活热循环期间) )以保持浅的B剖面,这对于提供具有中间间隙金属栅极的表面沟道CMOS器件而言是至关重要的,同时保持良好的短沟道效应。 对于具有中间间隙金属栅极的器件,B扩散曲线令人满意地浅,尖锐且具有高B浓度,以在栅极氧化物下提供并保持薄的高掺杂B层。
    • 8. 发明授权
    • Protection against charging damage in hybrid orientation transistors
    • 在混合取向晶体管中防止充电损坏
    • US07928513B2
    • 2011-04-19
    • US12317310
    • 2008-12-22
    • Terence B. HookAnda C. MocutaJeffrey W. SleightAnthony K. Stamper
    • Terence B. HookAnda C. MocutaJeffrey W. SleightAnthony K. Stamper
    • H01L27/12
    • H01L21/84H01L21/823807H01L21/823878H01L27/0251H01L27/0629H01L27/1203H01L27/1207
    • A chip can include a CMOS structure having a bulk device disposed in a first region of a semiconductor substrate in conductive communication with an underlying bulk region of the substrate, the first region and the bulk region having a first crystal orientation. An SOI device is disposed in a semiconductor-on-insulator (“SOI”) layer separated from the bulk region of the substrate by a buried dielectric layer, the SOI layer having a different crystal orientation from the first crystal orientation. In one example, the bulk device includes a p-type field effect transistor (“PFET”) and the SOI device includes an n-type field effect transistor (“NFET”) device. Alternatively, the bulk device can include an NFET and the SOI device can include a PFET. When the SOI device has a gate conductor in conductive communication with a gate conductor of the bulk device, charging damage can occur to the SOI device, except for the presence of diodes in reverse-biased conductive communication with the bulk region. The diodes are operable to conduct a discharge current to the bulk region when either a voltage on the gate conductor or a voltage on the source or drain region of the SOI device exceeds a diode's breakdown voltage.
    • 芯片可以包括CMOS结构,其具有设置在半导体衬底的第一区域中的体器件,其与衬底的下面的体区域导电连通,第一区域和体区具有第一晶体取向。 SOI器件设置在绝缘体上半导体(“SOI”)层中,其通过掩埋电介质层与衬底的本体区域分离,SOI层具有与第一晶体取向不同的晶体取向。 在一个示例中,体器件包括p型场效应晶体管(“PFET”),并且SOI器件包括n型场效应晶体管(“NFET”)器件。 或者,体器件可以包括NFET,并且SOI器件可以包括PFET。 当SOI器件具有与本体器件的栅极导体导通的栅极导体时,除了存在与体区域反向偏置导电连通的二极管之外,SOI器件可能发生充电损坏。 当栅极导体上的电压或SOI器件的源极或漏极区域上的电压超过二极管的击穿电压时,二极管可操作以将放电电流传导到体区。