Adhesive compositions containing organic spacers and methods for use thereof
AssigneeHenkel Corporation
InventorRichard E. Jaeger
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Abstract
In accordance with the present invention, there are provided adhesive compositions and methods for use thereof, comprising at least one maleimide-containing monomer, at least one cure initiator, and a plurality of spacer elements constructed from one or more organic polymers. Invention adhesive compositions are useful for controlling bond line thickness and planarity between a device and a substrate. Bond line thickness and planarity is largely determined by the size of the spacer elements in the adhesive composition.
Claims42
An adhesive composition comprising at least one maleimide-containing monomer, optionally at least one cure initiator, and a plurality of spacers constructed from one or more organic polymers.
An adhesive composition comprising at least one maleimide-containing monomer, optionally at least one cure initiator, and a plurality of spacers constructed from one or more organic polymers, wherein said spacers have a particle size in the range of about 0.02 mils up to about 25 mils.
An adhesive composition comprising at least one maleimide-containing monomer, optionally at least one cure initiator, and a plurality of spacers constructed from one or more organic polymers, wherein said organic polymers are polymerization or copolymerization products of α-olefins, (meth)acrylates, vinyl esters, acrylamides, or acrylonitriles.
An adhesive composition comprising in the range of about 1 wt % up to about 95 wt % at least one maleimide-containing monomer, in the range of about 0.2 wt % up to about 2.0 wt % at least one cure initiator, in the range of about 0.5 wt % up to about 5 wt % at least one coupling agent, in the range of about 1 wt % up to about 95 wt % at least one filler, and in the range of about 1 wt % up to about 50 wt % spacer constructed from one or more organic polymers.
An assembly comprising at least one semiconductor die, at least one substrate, and an adhesive composition forming a bond line therebetween, wherein the thickness of said bond line is determined by a plurality of spacers in said adhesive formulation.
An adhesive composition comprising at least one maleimide-containing monomer, optionally at least one cure initiator, and a plurality of spacers constructed from one of more organic polymers, wherein said spacers constructed from one or more organic polymers include at least one reactive moiety.
Dependencies are inferred from the claim text.