Transistor of semiconductor device and method for manufacturing the same
    2.
    发明授权
    Transistor of semiconductor device and method for manufacturing the same 有权
    半导体器件的晶体管及其制造方法

    公开(公告)号:US08835259B2

    公开(公告)日:2014-09-16

    申请号:US13960512

    申请日:2013-08-06

    申请人: SK Hynix Inc.

    发明人: Kyoung Chul Jang

    摘要: Provided are a transistor of a semiconductor device and a method for manufacturing the same. A gate induced drain leakage (GIDL) current is reduced by decreasing a work function at an upper portion of a gate electrode, and a threshold voltage of the transistor is maintained by maintaining a work function at a lower portion of the gate electrode at a high level, thereby reducing a leakage current of the transistor and reducing a read time and a write time of the semiconductor device. The transistor of the semiconductor device includes: a recess with a predetermined depth in a semiconductor substrate; a first gate electrode disposed within the recess; and a second gate electrode disposed on the first gate electrode into which ions of one or more of nitrogen (N), oxygen (O), arsenic (As), aluminum (Al), and hydrogen (H) are doped.

    摘要翻译: 提供半导体器件的晶体管及其制造方法。 通过降低栅电极的上部的功函数来减小栅极感应漏极漏电流(GIDL),并且通过将栅电极的下部的功函数维持在高位置来维持晶体管的阈值电压 电平,从而减小晶体管的漏电流并减少半导体器件的读取时间和写入时间。 半导体器件的晶体管包括:在半导体衬底中具有预定深度的凹槽; 设置在所述凹部内的第一栅电极; 以及第二栅电极,其设置在第一栅极上,掺杂有氮(N),氧(O),砷(As),铝(Al)和氢(H)中的一种或多种的离子。