Halo-free non-rectifying contact on chip with halo source/drain diffusion
    1.
    发明申请
    Halo-free non-rectifying contact on chip with halo source/drain diffusion 有权
    光环/漏极扩散芯片上的无光非整流接触

    公开(公告)号:US20020149058A1

    公开(公告)日:2002-10-17

    申请号:US10064305

    申请日:2002-07-01

    摘要: A semiconductor chip includes a semiconductor substrate having a rectifying contact diffusion and a non-rectifying contact diffusion. A halo diffusion is adjacent the rectifying contact diffusion and no halo diffusion is adjacent the non-rectifying contact diffusion. The rectifying contact diffusion can be a source/drain diffusion of an FET to improve resistance to punch-through. The non-rectifying contact diffusion may be an FET body contact, a lateral diode contact, or a resistor or capacitor contact. Avoiding a halo for non-rectifying contacts reduces series resistance and improves device characteristics. In another embodiment on a chip having devices with halos adjacent diffusions, no halo diffusion is adjacent a rectifying contact diffusion of a lateral diode, significantly improving ideality of the diode and increasing breakdown voltage.

    摘要翻译: 半导体芯片包括具有整流接触扩散和非整流接触扩散的半导体衬底。 光晕扩散与整流接触扩散相邻,并且没有晕圈扩散与非整流接触扩散相邻。 整流接触扩散可以是FET的源极/漏极扩散,以提高耐穿透性。 非整流接触扩散可以是FET体接触,横向二极管接触或电阻或电容器接触。 避免使用非整流触点的光圈可以降低串联电阻并提高器件特性。 在具有相邻扩散的光晕的器件的芯片的另一实施例中,没有卤素扩散与横向二极管的整流接触扩散相邻,从而显着地提高了二极管的理想性并增加了击穿电压。