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    • 44. 发明授权
    • Method and apparatus for semiconductor device with improved source/drain junctions
    • 具有改善的源极/漏极结的半导体器件的方法和装置
    • US07868386B2
    • 2011-01-11
    • US12058997
    • 2008-03-31
    • Kong-Beng TheiChung Long ChengHarry Chuang
    • Kong-Beng TheiChung Long ChengHarry Chuang
    • H01L23/58H01L29/76H01L29/94
    • H01L21/26586H01L21/26506H01L21/26513H01L29/105H01L29/1083H01L29/41766H01L29/665H01L29/6659H01L29/7843
    • A semiconductor device with improved source/drain junctions and methods for fabricating the device are disclosed. A preferred embodiment comprises a MOS transistor with a gate structure overlying a substrate, lightly doped source/drain regions formed in the substrate aligned to the gate structure, sidewall spacers formed on the sidewalls of the gate structure and overlying the lightly doped source/drain regions, deeper source/drain diffusions formed into the substrate aligned to the sidewall spacers and additional pocket implants of source/drain dopants formed at the boundary of the deeper source/drain diffusions and the substrate. In a preferred method, the additional pocket implants are formed using an angled ion implant with the angle being between 4 and 45 degrees from vertical. Additional embodiments include recesses formed in the source/drain regions and methods for forming the recesses.
    • 公开了一种具有改善的源极/漏极结的半导体器件和用于制造该器件的方法。 优选实施例包括具有覆盖在衬底上的栅极结构的MOS晶体管,形成在衬底中的与栅极结构对准的轻掺杂源极/漏极区域,形成在栅极结构的侧壁上并叠置在轻掺杂源极/漏极区域 形成在衬底中的更深的源极/漏极扩散与侧壁间隔物对准,并且在较深的源极/漏极扩散和衬底的边界处形成的源极/漏极掺杂剂的另外的凹穴注入。 在优选的方法中,使用角度离子植入物形成额外的袋状植入物,该角度离垂直方向在4度与45度之间。 另外的实施例包括在源极/漏极区域中形成的凹部和用于形成凹部的方法。
    • 46. 发明授权
    • Methods for fabricating SOI devices
    • 制造SOI器件的方法
    • US07803674B2
    • 2010-09-28
    • US12468131
    • 2009-05-19
    • Chung-Long ChengKong-Beng TheiSheng-Chen ChungTzung-Chi LeeHarry Chuang
    • Chung-Long ChengKong-Beng TheiSheng-Chen ChungTzung-Chi LeeHarry Chuang
    • H01L21/84
    • H01L21/84H01L27/1203H01L29/4238H01L29/78636
    • Silicon on insulator (SOI) devices and methods for fabricating the same are provided. An exemplary embodiment of a SOI device comprises a substrate. A first insulating layer is formed over the substrate. A plurality of semiconductor islands is formed over the first insulating layer, wherein the semiconductor islands are isolated from each other. A second insulating layer is formed over the first insulating layer, protruding over the semiconductor islands and surrounding thereof. At least one recess is formed in a portion of the second insulating layer adjacent to a pair of the semiconductor islands. A first dielectric layer is formed on a portion of each of the semiconductor islands. A conductive layer is formed over the first dielectric layer and over the second insulating layer exposed by the recess. A pair of source/drain regions is oppositely formed in portions of each of the semiconductor islands not covered by the first dielectric layer and the conductive layer.
    • 提供绝缘体上硅(SOI)器件及其制造方法。 SOI器件的示例性实施例包括衬底。 在衬底上形成第一绝缘层。 在第一绝缘层上形成多个半导体岛,其中半导体岛彼此隔离。 在第一绝缘层上形成第二绝缘层,突出在半岛上并围绕它们。 在与一对半导体岛相邻的第二绝缘层的一部分中形成至少一个凹部。 第一电介质层形成在每个半导体岛的一部分上。 导电层形成在第一电介质层之上,并在由凹部露出的第二绝缘层之上。 一对源极/漏极区域相对地形成在未被第一介电层和导电层覆盖的半导体岛的每一个的部分中。