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    • 3. 发明授权
    • Nickel salicide process with reduced dopant deactivation
    • 具有减少掺杂剂钝化的镍硅化物工艺
    • US07232756B2
    • 2007-06-19
    • US10812003
    • 2004-03-30
    • Ja-Hum KuKwan-Jong RohMin-Chul SunMin-Joo KimSug-Woo JungSun-Pil Youn
    • Ja-Hum KuKwan-Jong RohMin-Chul SunMin-Joo KimSug-Woo JungSun-Pil Youn
    • H01L21/44
    • H01L29/665H01L21/28052H01L21/28061H01L21/28518H01L29/66545H01L29/6656H01L29/6659H01L29/7833
    • Provided are exemplary methods for forming a semiconductor devices incorporating silicide layers formed at temperatures below about 700° C., such as nickel silicides, that are formed after completion of a silicide blocking layer (SBL). The formation of the SBL tends to deactivate dopant species in the gate, lightly-doped drain and/or source/drain regions. The exemplary methods include a post-SBL activation anneal either in place of or in addition to the traditional post-implant activation anneal. The use of the post-SBL anneal produces CMOS transistors having properties that reflect reactivation of sufficient dopant to overcome the SBL process effects, while allowing the use of lower temperature silicides, including nickel silicides and, in particular, nickel silicides incorporating a minor portion of an alloying metal, such as tantalum, the exhibits reduced agglomeration and improved temperature stability.
    • 提供了形成在硅化物阻挡层(SBL)完成之后形成的在低于约700℃的温度下形成的硅化物层的半导体器件(例如硅化镍)的示例性方法。 SBL的形成倾向于使栅极,轻掺杂漏极和/或源极/漏极区域中的掺杂物质失活。 示例性方法包括后SBL激活退火,代替传统的植入物后激活退火或替代传统的植入后激活退火。 后SBL退火的使用产生具有反映充分掺杂剂的再活化以克服SBL工艺效应的性质的CMOS晶体管,同时允许使用较低温度的硅化物,包括硅化镍,特别是掺入较小部分的硅化镍 合金金属如钽,表现出减少的团聚和改善的温度稳定性。
    • 9. 发明申请
    • STACKED SEMICONDUCTOR DEVICE AND METHOD OF FABRICATION
    • 堆叠半导体器件和制造方法
    • US20080199991A1
    • 2008-08-21
    • US12108591
    • 2008-04-24
    • Hyun-Su KimGil-Heyun ChoiJong-Ho YunSug-Woo JungEun-Ji Jung
    • Hyun-Su KimGil-Heyun ChoiJong-Ho YunSug-Woo JungEun-Ji Jung
    • H01L21/84
    • H01L27/0688H01L21/8221
    • A stacked semiconductor device comprises a lower transistor formed on a semiconductor substrate, a lower interlevel insulation film formed on the semiconductor substrate over the lower transistor, an upper transistor formed on the lower interlayer insulation film over the lower transistor, and an upper interlevel insulation film formed on the lower interlevel insulation film over the upper transistor. The stacked semiconductor device further comprises a contact plug connected between a drain or source region of the lower transistor and a source or drain region of the upper transistor, and an extension layer connected to a lateral face of the source or drain region of the upper transistor to enlarge an area of contact between the source or drain region of the upper transistor and a side of the contact plug.
    • 叠层半导体器件包括形成在半导体衬底上的下晶体管,形成在半导体衬底上的下层晶体管上的下层间绝缘膜,形成在下晶体管上的下层间绝缘膜上的上晶体管,以及上层间绝缘膜 形成在上层晶体管上的较低层间绝缘膜上。 叠层半导体器件还包括连接在下晶体管的漏极或源极区域与上部晶体管的源极或漏极区域之间的接触插塞以及连接到上部晶体管的源极或漏极区域的侧面的延伸层 以扩大上部晶体管的源极或漏极区域与接触插塞的一侧之间的接触面积。