Film adhesives containing maleimide compounds and methods for use thereof
AssigneeHenkel Corporation
InventorsPuwei Liu, Stephen M. Dershem, Kang Yang, Carolyn C. Albino
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Abstract
In accordance with the present invention, there are provided film adhesive compositions comprising at least one macromonomer having at least one unit of ethylenic unsaturation, at least one thermoplastic elastomer co-curable with the macromonomer, and at least one cure initiator, and methods for use thereof. Invention compositions are useful as adhesives in the microelectronics industry. In particular, invention film adhesives may be used to produce microelectronic assemblies with very thin bond lines without compromising adhesive strength.
Claims47
An adhesive composition comprising at least one macromonomer having at least one unit of ethylenic unsaturation, at least one thermoplastic elastomer co-curable with said at least one macromonomer, and at least one cure initiator.
An adhesive composition comprising in the range of about 5 wt % up to about 90 wt % thermoplastic elastomer, in the range of about 5 wt % up to about 90 wt % unsaturated macromonomer, in the range of about 0.5 wt % up to about 2.0 wt % cure initiator, in the range of about 0.5 wt % up to about 5 wt % coupling agent, and in the range of about 1 wt % up to about 95 wt % filler, wherein wt % is based on total weight of the composition.
An adhesive composition comprising at least one thermoplastic elastomer, at least one macromonomer having at least one unit of ethylenic unsaturation, and at least one cure initiator,
- wherein said macromonomer is selected from the group consisting of maleimides, allylated amides, and vinyl compounds.
An adhesive composition comprising at least one macromonomer having at least one unit of ethylenic unsaturation, at least one thermoplastic elastomer co-curable with said at least one macromonomer, and at least one cure initiator, which when dispensed between a device and a substrate and cured for 2 minutes at 200° C., provides a room temperature die shear of about 90 lbs.
Dependencies are inferred from the claim text.