Computer readable medium for controlling a method of cleaning a process chamber
    22.
    发明授权
    Computer readable medium for controlling a method of cleaning a process chamber 有权
    用于控制清洁处理室的方法的计算机可读介质

    公开(公告)号:US06482746B2

    公开(公告)日:2002-11-19

    申请号:US09874882

    申请日:2001-06-05

    IPC分类号: H01L21302

    摘要: A method for the in situ cleaning of a semiconductor deposition chamber utilized for the deposition of a semiconductor material such as titanium or titanium nitride comprising, between wafers, introducing chlorine gas into the chamber at elevated temperature, purging the chamber with an inert gas and evacuating it before introduction of the next wafer. A two-stage between wafer cleaning process is carried out by introducing chlorine into the chamber at elevated temperature, thereafter initiating a plasma without removing the chlorine, purging the chamber with an inert gas and evacuating it before introduction of the next wafer. In a preferred embodiment, a thin protective film of titanium is deposited on the inner sur aces of the chamber prior to utilizing the chamber for he deposition of such material. The protective layer is replenished following each two-stage cleaning.

    摘要翻译: 一种半导体沉积室的原位清洗方法,用于沉积诸如钛或氮化钛的半导体材料,包括在晶片之间,在升高的温度下将氯气引入室中,用惰性气体吹扫室,并排空 在引入下一个晶圆之前。 晶片清洗过程之间的两阶段是通过在升高的温度下将氯引入室中,之后启动等离子体而不去除氯,用惰性气体吹扫室并在引入下一个晶片之前对其进行排空。 在一个优选实施例中,在使用该室以沉积这种材料之前,将薄的钛保护膜沉积在室的内侧。 在每次两级清洁之后补充保护层。