A method comprising positioning a thermal interface material between a heat spreader or lid and one or more heat generating components prior to curing an adhesive for attaching the heat spreader or lid to an electronic device having the one or more heat generating components, wherein the thermal interface material has a softening or melting temperature higher than a normal operating temperature of the one or more heat generating components, whereby the thermal interface material will flow to form a thin bond line when heated to at least the softening or melting temperature while under pressure.