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    • 5. 发明授权
    • Composition for film formation, method of film formation, and silica-based film
    • 用于成膜的成分,成膜方法和二氧化硅基膜
    • US06800330B2
    • 2004-10-05
    • US10103996
    • 2002-03-25
    • Eiji HayashiMichinori NishikawaAtsushi ShiotaKinji Yamada
    • Eiji HayashiMichinori NishikawaAtsushi ShiotaKinji Yamada
    • B05D512
    • H01L21/02126C09D183/04C09D183/14H01L21/02216H01L21/02282H01L21/3122
    • A composition for film formation capable of forming a silica-based coating film having low water absorption and dielectric constant of 2.1 or lower and useful as an interlayer insulating film material in semiconductor devices, etc. The composition contains: (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing at least one silane compound selected from the group consisting of compounds represented by formula (1), compounds represented by formula (2), and compounds represented by formula (3) in the presence of a basic catalyst and water, RaSi(OR1)4−a  (1) wherein R represents a hydrogen atom, a fluorine atom, or a monovalent organic group, R1 represents a monovalent organic group, and a is an integer of 1 or 2, Si(OR2)4  (2) wherein R2 represents a monovalent organic group, R3b(R4O)3−bSi—(R7)d—Si(OR5)3−cR6c  (3) wherein R3 to R6 may be the same or different and each represents a monovalent organic group, b and c may be the same or different and each is a number of 0 to 2, R7 represents an oxygen atom, a phenylene group, or a group represented by —(CH2)n—, wherein n is an integer of 1 to 6, and d is 0 or 1; (B) a compound compatible with or dispersible in ingredient (A) and having a boiling point or decomposition temperature of from 250 to 450° C.; and (C) an organic solvent.
    • 用于形成能够形成低吸水性和介电常数为2.1以下并且用作半导体装置中的层间绝缘膜材料的二氧化硅系涂膜的成膜用组合物等。该组合物含有:(A)水解产物 和通过水解和缩合在式(1)表示的化合物,式(2)表示的化合物和式(3)表示的化合物中的至少一种硅烷化合物在碱性催化剂存在下水解和缩合得到的缩合物,和 水,其中R表示氢原子,氟原子或一价有机基团,R 1表示一价有机基团,a为1或2的整数,其中R 2表示一价有机基团, 其中R 3至R 6可以相同或不同,并且各自表示一价有机基团,b和c可以相同或不同,并且各自为0至2的数,R 7表示氧 原子,亚苯基, 或由 - (CH 2)n - 表示的基团,其中n为1至6的整数,d为0或1; (B)与成分(A)相容或分散且沸点或分解温度为250-450℃的化合物; 和(C)有机溶剂。