会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 71. 发明申请
    • MOSFETS COMPRISING SOURCE/DRAIN REGIONS WITH SLANTED UPPER SURFACES, AND METHOD FOR FABRICATING THE SAME
    • 包含上述上表面的源/漏区域的MOSFETs及其制造方法
    • US20080006854A1
    • 2008-01-10
    • US11425542
    • 2006-06-21
    • Zhijiong LuoYung F. ChongJudson R. HoltZhao LunHuilong Zhu
    • Zhijiong LuoYung F. ChongJudson R. HoltZhao LunHuilong Zhu
    • H01L29/76
    • H01L29/7848H01L29/6656H01L29/66636H01L29/7834
    • The present invention relates to improved metal-oxide-semiconductor field effect transistor (MOSFET) devices comprising source and drain (S/D) regions having slanted upper surfaces with respect to a substrate surface. Such S/D regions may comprise semiconductor structures that are epitaxially grown in surface recesses in a semiconductor substrate. The surface recesses preferable each has a bottom surface that is parallel to the substrate surface, which is oriented along one of a first set of equivalent crystal planes, and one or more sidewall surfaces that are oriented along a second, different set of equivalent crystal planes. The slanted upper surfaces of the S/D regions function to improve the stress profile in the channel region as well as to reduce contact resistance of the MOSFET. Such S/D regions with slanted upper surfaces can be readily formed by crystallographic etching of the semiconductor substrate, followed by epitaxial growth of a semiconductor material.
    • 本发明涉及包括源极和漏极(S / D)区域的改进的金属氧化物半导体场效应晶体管(MOSFET)器件,其具有相对于衬底表面倾斜的上表面。 这样的S / D区域可以包括在半导体衬底中的表面凹槽中外延生长的半导体结构。 优选的表面凹部具有平行于基板表面的底表面,该底表面沿着第一组等效晶面中的一个取向,并且沿着第二不同组的等效晶面定向的一个或多个侧壁表面 。 S / D区域的倾斜上表面用于改善沟道区域中的应力分布以及降低MOSFET的接触电阻。 具有倾斜的上表面的这种S / D区域可以容易地通过半导体衬底的晶体蚀刻形成,随后半导体材料的外延生长。
    • 76. 发明授权
    • Delta monolayer dopants epitaxy for embedded source/drain silicide
    • 用于嵌入式源极/漏极硅化物的三角形单层掺杂剂外延
    • US08299535B2
    • 2012-10-30
    • US12823163
    • 2010-06-25
    • Kevin K. ChanAbhishek DubeJudson R. HoltJeffrey B. JohnsonJinghong LiDae-Gyu ParkZhengmao Zhu
    • Kevin K. ChanAbhishek DubeJudson R. HoltJeffrey B. JohnsonJinghong LiDae-Gyu ParkZhengmao Zhu
    • H01L29/78H01L21/336H01L21/762H01L21/8234H01L21/8238
    • H01L29/66636H01L21/823807H01L21/823814H01L29/165H01L29/665H01L29/6656H01L29/6659H01L29/7834H01L29/7848
    • Semiconductor structures are disclosed that have embedded stressor elements therein. The disclosed structures include at least one FET gate stack located on an upper surface of a semiconductor substrate. The at least one FET gate stack includes source and drain extension regions located within the semiconductor substrate at a footprint of the at least one FET gate stack. A device channel is also present between the source and drain extension regions and beneath the at least one gate stack. The structure further includes embedded stressor elements located on opposite sides of the at least one FET gate stack and within the semiconductor substrate. Each of the embedded stressor elements includes, from bottom to top, a first layer of a first epitaxy doped semiconductor material having a lattice constant that is different from a lattice constant of the semiconductor substrate and imparts a strain in the device channel, a second layer of a second epitaxy doped semiconductor material located atop the first layer, and a delta monolayer of dopant located on an upper surface of the second layer. The structure further includes a metal semiconductor alloy contact located directly on an upper surface of the delta monolayer.
    • 公开了在其中具有嵌入的应力元件的半导体结构。 所公开的结构包括位于半导体衬底的上表面上的至少一个FET栅极堆叠。 所述至少一个FET栅极堆叠包括在所述至少一个FET栅极堆叠中的覆盖区域处位于所述半导体衬底内的源极和漏极延伸区域。 器件沟道也存在于源极延伸区域和漏极延伸区域之间以及至少一个栅极堆叠层下方。 该结构还包括位于至少一个FET栅极堆叠的相对侧上并且位于半导体衬底内的嵌入式应力元件。 每个嵌入式应力元件包括从底部到顶部的第一外延掺杂半导体材料的第一层,其具有不同于半导体衬底的晶格常数的晶格常数并且在器件沟道中施加应变;第二层 位于第一层顶部的第二外延掺杂半导体材料和位于第二层的上表面上的掺杂剂的Δ单层。 该结构还包括直接位于三角形单层的上表面上的金属半导体合金触点。