Patent ID: 6888257

Claim:
A die assembly comprising: a substrate bearing a semiconductor die, an integrated heat spreader, optional lid and a thermal interface material comprising a 96% to 100% solids adhesive exhibiting a cured bulk thermal conductivity of 5 to 27 W/mK and comprising 75% to 90% by weight of thermally conductive particulate filler, and from 10% to 25% by weight of organic component, said organic component comprising from 60% to 70% by weight of a diglycidal ether of bisphenol compound, 4 to 30% by weight of a acyclic aliphatic, cycloaliphatic or mononuclear aromatic diglycidal ether having an epoxy equivalent weight of less than 200, from 3% to 30% of a monofunctional epoxy compound having an equivalent weight of less than 250 and from20% to 30% of a polyamine-anhydride adduct having a melting point of from 60Â° to 200Â° C., all percentages totaling 100%.