Silicon-containing alcohols and polymers having silicon-containing tertiary ester groups made therefrom
申请人:3M Innovative Properties Company
公开号:US06358675B1
公开(公告)日:2002-03-19
The polymers of the invention are characterized by having at least one pendent ester group having a tertiary carbon atom attached to the ester oxygen atom in which at least one substituent of the tertiary carbon atom comprises at least one silicon atom. The polymer compositions of the present invention are useful as resist materials for lithography, in particular as the imaging layer or as the top imaging layer in a bilayer resist scheme for use in the manufacture of integrated circuits. The silicon-containing tertiary alcohols and esters of the present invention enable the preparation of polymers with relatively high silicon content.