Abstract:
A heat spreader (305), comprised of a plurality of carbon fibers oriented in a plurality of directions, with a carbon or metal matrix material dispersed about the fibers, is described. The carbon fibers facilitate the spreading of heat away from the smaller semiconductor device (303) and up to a larger heat removal device, such as a heat sink (306).
Abstract:
A composition, a method, and a system for a solder flux are disclosed herein. In various embodiments, a solder flux composition may comprise a surfactant and less than about 20% of a carboxylic acid. In some of these embodiments, the solder flux composition may be used in lead-free soldering processes.
Abstract:
Method of forming solder bumps of an integrated circuit package is described. A solder paste is formed from a material having characteristic that the deposited solder paste bricks (214) substantially retain their geometric shape upon exposure to UV radiation before solder paste reflow.
Abstract:
An embodiment of a phase change TIM of this invention comprises a polyester matrix with melting temperature near or below operating temperature (typically less than about 130°C), thermally conductive filler with bulk thermal conductivity greater than about 50 W/mK, and optionally other additives. The polyester resin has improved thermo-oxidative stability compared to the polyolefin resins, thereby providing improved reliability performance during test.
Abstract:
A thermal interface material is described for thermal coupling of an electronic component to a thermally conductive member. The thermal interface material includes a viscoelastic polymer matrix material, fusible solder particles in the matrix material, and filler particles in the matrix material. The solder particles have a melting temperature below a selected temperature (e.g. 157°C for indium) and the filler particles have a melting temperature substantially above the selected temperature (e.g. 961°C for silver). The filler particles keep the thermal interface material intact under adverse thermal and stress conditions.