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    • 9. 发明授权
    • Method for the formation of silica thin films
    • 二氧化硅薄膜的形成方法
    • US06191183B1
    • 2001-02-20
    • US09412219
    • 1999-10-05
    • Akihiko KobayashiKatsutoshi MineTakashi NakamuraMotoshi SasakiKiyotaka Sawa
    • Akihiko KobayashiKatsutoshi MineTakashi NakamuraMotoshi SasakiKiyotaka Sawa
    • C08J328
    • C09D183/04C08G77/12H01L21/316Y10T428/31663
    • The instant invention pertains to a composition that can form silica thin films, wherein said composition performs well as a substrate planarizing coating when applied to a substrate and can be converted by exposure to high-energy radiation into silica thin film with an excellent electrical insulating performance. The composition for the formation of silica thin films comprises (A) a hydrogen silsesquioxane resin that contains at least 45 weight % hydrogen silsesquioxane resin with a molecular weight no greater than 1,500; and (B) solvent. A silica thin film is produced by evaporating the solvent (B), and then converting at least a portion of the hydrogen silsesquioxane resin (A) to silica by exposing the surface of the said substrate to high-energy radiation. The preferred substrate is a semiconductor substrate having at least one electrically conductive layer.
    • 本发明涉及可以形成二氧化硅薄膜的组合物,其中所述组合物在施加到基底上时作为基底平面化涂层表现良好,并且可以通过暴露于高能辐射而转化成具有优异电绝缘性能的二氧化硅薄膜 。 用于形成二氧化硅薄膜的组合物包括(A)含有至少45重量%的分子量不超过1500的氢倍半硅氧烷树脂的氢倍半硅氧烷树脂; 和(B)溶剂。 通过蒸发溶剂(B)制备二氧化硅薄膜,然后通过将所述基材的表面暴露于高能辐射而将至少一部分氢倍半硅氧烷树脂(A)转化为二氧化硅。 优选的衬底是具有至少一个导电层的半导体衬底。