Anti-reflective coating compositions comprising polymerized aminoplasts

    公开(公告)号:US20030065164A1

    公开(公告)日:2003-04-03

    申请号:US10003558

    申请日:2001-10-24

    CPC classification number: H04B1/403 C08L61/28 G02B1/111 H04B1/30

    Abstract: Improved anti-reflective coating compositions for use in integrated circuit manufacturing processes and methods of forming these compositions are provided. Broadly, the compositions are formed by heating a solution comprising a compound including specific compounds (e.g., alkoxy alkyl melamines, alkoxy alkyl benzoguanamines) under acidic conditions so as to polymerize the compounds and form polymers having an average molecular weight of at least about 1,000 Daltons. The monomers of the resulting polymers are joined to one another via linkage groups (e.g., nullCH2null, nullCH2nullOnullCH2null) which are bonded to nitrogen atoms on the respective monomers. The polymerized compound is mixed with a solvent and applied to a substrate surface after which it is baked to form an anti-reflective layer. The resulting layer has high k values and can be formulated for both conformal and planar applications.

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