摘要:
Thermal interface compositions contain both non-electrically conductive micron-sized fillers and electrically conductive nanoparticles blended with a polymer matrix. Such compositions increase the bulk thermal conductivity of the polymer composites as well as decrease thermal interfacial resistances that exist between thermal interface materials and the corresponding mating surfaces. Such compositions are electrically non-conductive. Formulations containing nanoparticles also show less phase separation of micron-sized particles than formulations without nanoparticles.
摘要:
An electronics package is provided. The electronics package may include an underfill layer having a surface that defines an opening. The electronics package may include a polymer bump structure disposed within the opening. A laminate for use as an underfill layer is provided. Associated methods are provided.
摘要:
The present invention provides an electrically conductive adhesive composition having cured low modulus elastomer and metallurgically-bonded micron-sized metal particles and nano-sized metal particles. The low modulus elastomer provides the mechanical robustness and reliability by relieving the stresses generated; and the metallurgically-bonded micron-sized metal particles and nano-sized metal particles provide a continuous conducting path with minimized interface resistance. Addition of nano-sized metal particles lowers the fusion temperature and allows the metallurgical-bonding to occur at manageable temperatures.
摘要:
Thermal interface compositions contain filler particles possessing a maximum particle size less than 25 microns in diameter blended with a polymer matrix. Such compositions enable lower attainable bond line thickness, which decreases in-situ thermal resistances that exist between thermal interface materials and the corresponding mating surfaces.
摘要:
Thermal interface compositions contain filler particles possessing a maximum particle size less than 25 microns in diameter blended with a polymer matrix. Such compositions enable lower attainable bond line thickness, which decreases in-situ thermal resistances that exist between thermal interface materials and the corresponding mating surfaces.
摘要:
Thermally conductive compositions containing spherical boron nitride filler particles having an average aspect ration of less than 2.0 in a polymer matrix.
摘要:
An electronic assembly having at least a heat dissipating unit and a heat generating unit is provided. At least one of the heat dissipating unit and the heat generating unit has at least one deliberately modified surface.
摘要:
A thermally manageable system is provided. The system may include a heat-generating unit, a heat-dissipating unit, and a thermal transport structure located between the heat-dissipating unit and the heat-generating unit. The thermal transport structure has a first surface in thermal communication with the heat-generating unit and a second surface in thermal communication with the heat-dissipating unit. The thermal transport structure includes a thermally conductive material having a length-to-width ratio greater than 1, and the length is oriented to directionally facilitate heat conduction in a direction about perpendicular at least one of the thermal transport structure first surface or second surface. The thermal transport layer comprises a plurality of individual thermally conductive strips or channels that define a discontinuous array within a relatively non-thermally conductive matrix.
摘要:
An underfill composition with enhanced adhesion and improved resistance to cracking comprising an epoxy resin in combination with a difunctional siloxane anhydride epoxy hardener and optional reagents. In some embodiments, the epoxy resin includes a functionalized colloidal silica filler having a particle size ranging from about 1 nm to about 500 nm. The difunctional siloxane anhydride epoxy hardener can optionally be combined with liquid anhydride epoxy hardeners. Cure catalysts, hydroxyl-containing monomers, adhesion promoters, flame retardants and defoaming agents may also be added to the composition. Further embodiments of the present disclosure include packaged solid state devices comprising the underfill compositions.
摘要:
A curable epoxy formulation is provided in the present invention. The formulation comprises an epoxy monomer, an organofunctionalized colloidal silica having a particle size in a range between about 2 nanometers and about 20 nanometers, and optional reagents wherein the organofunctionalized colloidal silica substantially increases the glass transition temperature of the epoxy formulation. Further embodiments of the present invention include a semiconductor package comprising the aforementioned curable epoxy formulation.