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    • 61. 发明授权
    • Silicided regions for NMOS and PMOS devices
    • 用于NMOS和PMOS器件的硅化区域
    • US07687861B2
    • 2010-03-30
    • US11248555
    • 2005-10-12
    • Chii-Ming WuChiang-Ming ChuangChih-Wei Chang
    • Chii-Ming WuChiang-Ming ChuangChih-Wei Chang
    • H01L27/092
    • H01L29/7843H01L21/823807H01L21/823814H01L21/823864H01L29/665H01L29/6653H01L29/6656H01L29/6659H01L29/7833
    • A semiconductor device having an NMOS and a PMOS device formed thereon is provided. The NMOS device has additional spacers formed alongside the gate electrode to allow the silicide region to be formed farther away from the gate electrode. By placing the silicide region farther away from the gate electrode, the effects of the lateral encroachment of the silicide region under the spacers is reduced, particularly the leakage. A method of forming the semiconductor device may include forming a plurality of spacers alongside the gate electrodes of a PMOS and an NMOS device, and one or more implants may be performed to implant impurities into the source/drain regions of the PMOS and NMOS devices. One or more of the spacers alongside the gate electrode of the PMOS device may be selectively removed. Thereafter, the source/drain regions may be silicided.
    • 提供了一种其上形成有NMOS和PMOS器件的半导体器件。 NMOS器件具有在栅电极旁边形成的附加间隔物,以允许硅化物区域远离栅电极形成。 通过将硅化物区域放置在更远离栅电极的位置,减少了间隔物下方的硅化物区域的横向侵蚀的影响,特别是泄漏。 形成半导体器件的方法可以包括在PMOS和NMOS器件的栅电极旁边形成多个间隔物,并且可以执行一个或多个注入以将杂质注入到PMOS和NMOS器件的源极/漏极区域中。 可以选择性地去除与PMOS器件的栅电极旁边的一个或多个间隔物。 此后,源极/漏极区域可以被硅化。