7.
    发明专利
    未知

    公开(公告)号:DE3683461D1

    公开(公告)日:1992-02-27

    申请号:DE3683461

    申请日:1986-10-07

    Applicant: IBM

    Abstract: By hydrolyzing an organoalkoysilane monomer at high concentration in solution to form a silanol, allowing the silanol to age to produce a low molecular weight oligomer, spin-applying the oligomer onto a substrate to form a discrete film of highly associated cyclic oligomer thereon, heat treating the oligomer film to form a modified ladder-type silsesquioxane condensation polymer, and then oxidizing the silsesquioxane in an 0₂ RIE, an organoglass is formed which presents novel etch properties. The organoglass can be used as an etch-stop layer in a passivation process.

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