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    • 1. 发明授权
    • Narrow width CMOS devices fabricated on strained lattice semiconductor substrates with maximized NMOS and PMOS drive currents
    • 窄带CMOS器件制造在具有最大NMOS和PMOS驱动电流的应变晶格半导体衬底上
    • US06764908B1
    • 2004-07-20
    • US10173770
    • 2002-06-19
    • Daniel KadoshDerick J. WristersQi XiangBin Yu
    • Daniel KadoshDerick J. WristersQi XiangBin Yu
    • H01L21336
    • H01L29/1054H01L21/823807
    • A method of manufacturing a semiconductor device comprises steps of: (a) providing a semiconductor substrate comprising an upper, tensilely strained lattice semiconductor layer and a lower, unstressed semiconductor layer; and (b) forming at least one MOS transistor on or within the tensilely strained lattice semiconductor layer, wherein the forming comprises a step of regulating the drive current of the at least one MOS transistor by adjusting the thickness of the tensilely strained lattice semiconductor layer. Embodiments include CMOS devices formed in substrates including a strained Si layer lattice-matched to a graded composition Si—Ge layer, wherein the thickness of the strained Si layer of each of the PMOS and NMOS transistors is adjusted to provide each transistor type with maximum drive current.
    • 一种制造半导体器件的方法包括以下步骤:(a)提供包括上部,拉伸应变晶格半导体层和下部未应力半导体层的半导体衬底; 和(b)在拉伸应变晶格半导体层上或其内形成至少一个MOS晶体管,其中所述形成包括通过调整拉伸应变晶格半导体层的厚度来调节所述至少一个MOS晶体管的驱动电流的步骤。 实施例包括形成在包括与渐变组合物Si-Ge层晶格匹配的应变Si层的衬底中的CMOS器件,其中调节每个PMOS晶体管和NMOS晶体管的应变Si层的厚度以提供每个晶体管类型的最大驱动 当前。