Dry etching patterning of electrical and optical materials
    1.
    发明授权
    Dry etching patterning of electrical and optical materials 失效
    电光学材料的干蚀刻图案化

    公开(公告)号:US4734152A

    公开(公告)日:1988-03-29

    申请号:US73905

    申请日:1987-07-13

    摘要: A new anisotropic dry etching system using a hot jet tube to heat and dissociate non-reactive source gas to form a directed flux of reactive specie or radicals for etching materials through openings in a resist or a reusable stencil of SiN.sub.x wherein x is in the range of 1.5 to 0.5. Si and GaAs may be etched using Cl.sub.2, F.sub.3, Br.sub.2 or SF.sub.6 source gasses. Pb or Hg, Cd, Te may be etched using n-butane, dimethyl ether or acetone as a source gas for CH.sub.3 radicals. The tube may be formed of tungsten or where fluorine is used as a source gas, an irridium tube is preferred. Alternatively, a tube formed of rhenium or an alloy of rhenium and tungsten is preferred for some applications.

    摘要翻译: 一种新的各向异性干蚀刻系统,其使用热喷射管来加热和解离非反应性源气体,以形成反应物质或自由基的定向通量,以通过SiN x的抗蚀剂或可再利用的模板中的开口蚀刻材料,其中x在 为1.5〜0.5。 可以使用Cl2,F3,Br2或SF6源气体来蚀刻Si和GaAs。 可以使用正丁烷,二甲醚或丙酮作为CH3自由基的源气体来蚀刻Pb或Hg,Cd,Te。 管可以由钨形成或者使用氟作为原料气体,优选为铱管。 或者,对于一些应用,优选由铼或铼和钨的合金形成的管。