摘要:
A method of forming polymer reinforced solder-bumped containing device or substrate is described. The method comprises the following steps: providing a device or substrate having at least one solder bump formed thereon; coating a predetermined portion of the device or substrate with a curable polymer reinforcement material forming a layer on the device or substrate, partially curing the curable polymer reinforcement material to provide a solder-bumped structure comprising a partially cured polymer reinforcement material, and, making a connection between the solder-bumped structure formed and a printed circuit board or array of attachment pads and fully curing the partially cured polymer reinforcement material to provide a reinforced interconnection. Full curing of the polymer reinforcement material may take place either during the “reflow step” or subsequent to it (post-curing).
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:
Disclosed are methods for forming an electronic device that comprises a material that functions as an underfill material as well as a thermal interface material simultaneously. The electronic assembly comprising a heat dissipating element, a semiconductor chip, a substrate and a thermally conductive material is also given here, wherein the thermally conductive material serves as an underfill material as well as a thermal interface material simultaneously.
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:
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 composition comprises a first curable resin composition that includes at least one aromatic epoxy resin in combination with a solvent, a functionalized colloidal silica dispersion, and at least one other component selected from the group consisting of cycloaliphatic epoxy monomers, aliphatic epoxy monomers, hydroxy aromatic compounds, combinations thereof, and mixtures thereof. The composition can include a separate second curable fluxing composition that comprises at least one epoxy resin. The first curable resin or the combination of the two resin compositions is useful in producing underfill materials and is suitable for use as an encapsulant for electronic chips.
摘要:
A cure catalyst is provided. The cure catalyst may include a Lewis acid and one or both of a nitrogen-containing molecule or a non-tertiary phosphine. The nitrogen-containing molecule may include a mono amine or a heterocyclic aromatic organic compound. A curable composition may include the cure catalyst. An electronic device may include the curable composition. Methods associated with the foregoing are provided also.
摘要:
A solvent-modified resin composition for use as underfill material is provided. The composition having at least one epoxy resin, at least one solvent and a filler of functionalized colloidal silica. The solvent-modified resin composition is useful in making transparent B-stage resin films. Embodiments of the disclosure include use as a wafer level underfill, and an encapsulant for electronic chips.
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.
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.