METHOD AND APPARATUS TO TUNE THRESHOLD VOLTAGE OF DEVICE WITH HIGH ANGLE SOURCE/DRAIN IMPLANTS
    3.
    发明申请
    METHOD AND APPARATUS TO TUNE THRESHOLD VOLTAGE OF DEVICE WITH HIGH ANGLE SOURCE/DRAIN IMPLANTS 审中-公开
    用高角度源/漏极植入物调节器件的阈值电压的方法和装置

    公开(公告)号:US20160172443A1

    公开(公告)日:2016-06-16

    申请号:US14967199

    申请日:2015-12-11

    Abstract: A method for tuning a threshold voltage of a semiconductor device includes implanting at least one dopant in a semiconductor substrate at an angle to form a source region and/or a drain region of a transistor. The angle is oblique to a surface of the substrate. Implanting the at least one dopant at the angle alters a flat-band voltage of the transistor and shifts the threshold voltage of the transistor. The at least one dopant or at least one additional dopant can be implanted in a gate electrical contact of the transistor. Implanting the at least one dopant at the oblique angle can change an electrostatic potential of a gate electrical contact of the transistor compared to implanting the at least one dopant at a non-oblique angle, and the change in the electrostatic potential of the gate electrical contact can shift the threshold voltage of the transistor.

    Abstract translation: 用于调整半导体器件的阈值电压的方法包括以一定角度在半导体衬底中注入至少一种掺杂剂以形成晶体管的源极区和/或漏极区。 该角度与衬底的表面倾斜。 以角度植入至少一种掺杂剂会改变晶体管的平带电压并使晶体管的阈值电压发生偏移。 可以将至少一种掺杂剂或至少一种附加掺杂剂注入到晶体管的栅极电接触中。 以倾斜角度植入所述至少一种掺杂剂可以改变晶体管的栅极电接触的静电电位,以便以非倾斜角度注入至少一种掺杂剂,并且栅极电接触的静电电位的变化 可以移动晶体管的阈值电压。

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