Process for manufacturing a TFT device with source and drain regions having gradual dopant profile
    2.
    发明授权
    Process for manufacturing a TFT device with source and drain regions having gradual dopant profile 有权
    用于制造具有逐渐掺杂剂分布的源区和漏区的TFT器件的工艺

    公开(公告)号:US07674694B2

    公开(公告)日:2010-03-09

    申请号:US12031456

    申请日:2008-02-14

    IPC分类号: H01L21/20 H01L21/36

    CPC分类号: H01L29/78621 H01L29/66757

    摘要: A process for realizing TFT devices on a substrate comprises the steps of: forming on the substrate, in cascade, an amorphous silicon layer and a heavily doped amorphous silicon layer, forming a photolithographic mask on the heavily doped amorphous silicon layer provided with an opening, removing the heavily doped amorphous silicon layer through the opening for realizing opposite portions of the heavily doped amorphous silicon layer whose cross dimensions decrease as long as they depart from the amorphous silicon layer, removing the photolithographic mask, carrying out a diffusion and activation step of the dopant contained in the portions of the heavily doped amorphous silicon layer inside the amorphous silicon layer, for realizing source/drain regions of said TFT device.

    摘要翻译: 用于在衬底上实现TFT器件的工艺包括以下步骤:级联地形成非晶硅层和重掺杂非晶硅层,在设置有开口的重掺杂非晶硅层上形成光刻掩模, 通过开口去除重掺杂的非晶硅层,用于实现重掺杂非晶硅层的相对部分,其横截面尺寸随着离开非晶硅层而减小,除去光刻掩模,进行扩散和激活步骤 包含在非晶硅层内部的重掺杂非晶硅层的部分中的掺杂物,用于实现所述TFT器件的源极/漏极区域。

    PROCESS FOR MANUFACTURING A TFT DEVICE WITH SOURCE AND DRAIN REGIONS HAVING GRADUAL DOPANT PROFILE
    3.
    发明申请
    PROCESS FOR MANUFACTURING A TFT DEVICE WITH SOURCE AND DRAIN REGIONS HAVING GRADUAL DOPANT PROFILE 有权
    用于生产具有粗糙型配置文件的源和漏区的TFT设备的过程

    公开(公告)号:US20080213961A1

    公开(公告)日:2008-09-04

    申请号:US12031456

    申请日:2008-02-14

    IPC分类号: H01L21/336 H01L21/20

    CPC分类号: H01L29/78621 H01L29/66757

    摘要: Process for realizing TFT devices on a substrate which comprises the steps of: forming on the substrate, in cascade, an amorphous silicon layer and a heavily doped amorphous silicon layer, forming a photolithographic mask on the heavily doped amorphous silicon layer provided with an opening, removing the heavily doped amorphous silicon layer through the opening for realizing opposite portions of the heavily doped amorphous silicon layer whose cross dimensions decrease as long as they depart from the amorphous silicon layer, removing the photolithographic mask, carrying out a diffusion and activation step of the dopant contained in the portions of the heavily doped amorphous silicon layer inside the amorphous silicon layer, for realizing source/drain regions of said TFT device.

    摘要翻译: 一种用于在衬底上实现TFT器件的方法,包括以下步骤:级联地形成非晶硅层和重掺杂非晶硅层,在设置有开口的重掺杂非晶硅层上形成光刻掩模, 通过开口去除重掺杂的非晶硅层,用于实现重掺杂非晶硅层的相对部分,其横截面尺寸随着离开非晶硅层而减小,除去光刻掩模,进行扩散和激活步骤 包含在非晶硅层内部的重掺杂非晶硅层的部分中的掺杂物,用于实现所述TFT器件的源极/漏极区域。