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公开(公告)号:US06558747B2
公开(公告)日:2003-05-06
申请号:US10014593
申请日:2001-12-14
申请人: Rempei Nakata , Nobuhide Yamada , Hideshi Miyajima , Akihiro Kojima , Takahiko Kurosawa , Eiji Hayashi , Youngsoon Seo , Atsushi Shiota , Kinji Yamada
发明人: Rempei Nakata , Nobuhide Yamada , Hideshi Miyajima , Akihiro Kojima , Takahiko Kurosawa , Eiji Hayashi , Youngsoon Seo , Atsushi Shiota , Kinji Yamada
IPC分类号: B05D379397
CPC分类号: C08G77/16 , C09D183/06 , H01L21/02126 , H01L21/02216 , H01L21/02282 , H01L21/3122 , Y10T428/31663
摘要: A method of forming an insulating film which includes the steps of: dissolving in a solvent a first and second polymer which each comprise methylpolysiloxane as the main component and one of which has a weight average molecular weight at least 10 times that of the other to thereby prepare a chemical solution; applying the chemical solution to a semiconductor substrate to form a coating film; and heat-treating the coating film to thereby form an organosilicon oxide film. The weight-average molecular weight of the first polymer is preferably at least 100 times that of the second polymer. Thus, an insulating organosilicon oxide film having a low dielectric constant and high cracking resistance is formed from a coating fluid.