Ceramic coating comprising yttrium which is resistant to a reducing plasma
    8.
    发明申请
    Ceramic coating comprising yttrium which is resistant to a reducing plasma 审中-公开
    包含耐还原性等离子体的钇的陶瓷涂层

    公开(公告)号:US20090214825A1

    公开(公告)日:2009-08-27

    申请号:US12072530

    申请日:2008-02-26

    IPC分类号: B32B7/00 C23C4/00

    摘要: Particulate generation has been a problem in semiconductor device processing in highly corrosive plasma environments. The problem is exacerbated when the plasma is a reducing plasma. Empirically produced data has shown that the formation of a plasma spray coated yttrium-comprising ceramic such as yttrium oxide, Y2O3—ZrO2 solid solution, YAG, and YF3 provides a low porosity coating with smooth and compacted surfaces when such ceramics are spray coated from a powder feed having an average effective diameter ranging from about 22 μm to about 0.1 μm. These spray-coated materials reduce the generation of particulates in corrosive reducing plasma environments.

    摘要翻译: 在高度腐蚀性等离子体环境中的半导体器件加工中,微粒产生是一个问题。 当等离子体是还原等离子体时,问题更加严重。 经验生产的数据显示,等离子体喷涂的包含钇的陶瓷如氧化钇,Y2O3-ZrO2固溶体,YAG和YF3的形成提供了具有光滑和压实表面的低孔隙率涂层,当这种陶瓷从 粉末进料的平均有效直径为约22μm至约0.1μm。 这些喷涂材料减少了腐蚀性还原等离子体环境中的颗粒物的产生。