Patent ID: 6663741
Filing Date: 2003-12-16
Classification: C09J,H01L,H05K,Y10T

Abstract:
An adhesive tape for temporary attachment of green sheets for a ceramic electronic device, comprising a substrate film and an adhesive layer provided on at least one face of the substrate film, the adhesive layer comprising an adhesive composition, the adhesive composition containing a side-chain crystallizable polymer, wherein the side-chain crystallizable polymer comprises as a component an acrylic acid alkyl ester and/or a methacrylic acid alkyl ester which has a straight-chain alkyl group including 16 or more carbon atoms as a side chain, the side-chain crystallizable polymer having a first-order melting transition occurring in a temperature range narrower than about 35Â° C.,wherein the adhesive layer has a modulus of elasticity of about 5Ã—104 Pa to about 1Ã—108 Pa, so that the lateral deformation stress, which is applied owing to the thickness of a cutting blade as it is inserted, can be reduced by the elastic properties of the adhesive layer.