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    • 6. 发明授权
    • Strained silicon device
    • 应变硅器件
    • US08569845B2
    • 2013-10-29
    • US11549002
    • 2006-10-12
    • Chien-Chao HuangCheng-Chuan HuangFu-Liang Yang
    • Chien-Chao HuangCheng-Chuan HuangFu-Liang Yang
    • H01L21/02
    • H01L29/7842H01L29/665H01L29/6656H01L29/6659H01L29/66636H01L29/66772H01L29/7833H01L29/7843H01L29/78621
    • A method of manufacturing a microelectronic device includes forming a p-channel transistor on a silicon substrate by forming a poly gate structure over the substrate and forming a lightly doped source/drain region in the substrate. An oxide liner and nitride spacer are formed adjacent to opposing side walls of the poly gate structure and a recess is etched in the semiconductor substrate on opposing sides of the oxide liner. Raised SiGe source/drain regions are formed on either side of the oxide liner and slim spacers are formed over the oxide liner. A hard mask over the poly gate structure is used to protect the poly gate structure during the formation of the raised SiGe source/drain regions. A source/drain dopant is then implanted into the substrate including the SiGe regions.
    • 微电子器件的制造方法包括通过在衬底上形成多晶硅栅极结构并在衬底中形成轻掺杂的源极/漏极区,在硅衬底上形成p沟道晶体管。 邻近多晶硅栅极结构的相对侧壁形成氧化物衬垫和氮化物间隔物,并且在氧化物衬垫的相对侧上的半导体衬底中蚀刻凹陷。 在氧化物衬垫的两侧形成升高的SiGe源极/漏极区,并且在氧化物衬垫上形成细长的间隔物。 在形成升高的SiGe源极/漏极区域期间,使用多晶硅栅极结构上的硬掩模来保护多晶硅栅极结构。 然后将源极/漏极掺杂剂注入到包括SiGe区域的衬底中。