Thermally stable low resistance contact
    10.
    发明授权
    Thermally stable low resistance contact 失效
    耐热稳定的低电阻接触

    公开(公告)号:US4849802A

    公开(公告)日:1989-07-18

    申请号:US233851

    申请日:1988-08-16

    IPC分类号: H01L29/45

    CPC分类号: H01L29/452

    摘要: In a semiconductor device, a contact with low resistance to a III-V compound semiconductor substrate was fabricated using refractory materials and small amounts of indium as the contact material. The contact material was formed by depositing Mo, Ge and W with small amounts of In onto doped GaAs wafers. The contact resistance less than 1.0 ohm millimeter was obtained after annealing at 800.degree. C. and the resistance did not increase after subsequent prolonged annealing at 400.degree. C.

    摘要翻译: 在半导体器件中,使用耐火材料和少量的铟作为接触材料制造具有低耐III-V化合物半导体衬底的接触。 通过将Mo,Ge和W与少量的In沉积到掺杂的GaAs晶片上形成接触材料。 800℃退火后获得小于1.0欧姆毫米的接触电阻,在400℃下经过长时间的退火后,电阻不增加。