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- AlSiC abstract "AlSiC, pronounced \"alsick\", is a metal matrix composite consisting of aluminium matrix with silicon carbide particles. It has high thermal conductivity (180–200 W/m K), and its thermal expansion can be adjusted to match other materials, e.g. silicon and gallium arsenide chips and various ceramics. It is chiefly used in microelectronics as substrate for power semiconductor devices and high density multi-chip modules, where it aids with removal of waste heat.Several variants exist:AlSiC-9, containing 37 vol.% of A 356.2 aluminium alloy and 63 vol.% silicon carbide. Its thermal conductivity is 190–200 W/m K. Its thermal expansion roughly matches gallium arsenide, silicon, indium phosphide, alumina, aluminium nitride, silicon nitride, and Direct Bonded Copper aluminium nitride. It is also compatible with some low temperature co-fired ceramics, e.g. Ferro A6M and A6S, Heraeus CT 2000, and Kyocera GL560. Its density at 25 °C is 3.01 g/cm3.AlSiC-10, containing 45 vol.% of A 356.2 aluminium alloy and 55 vol.% silicon carbide. Its thermal conductivity is 190–200 W/m K. Its thermal expansion roughly matches e.g. printed circuit boards, FR-4, and Duroid. Its density at 25 °C is 2.96 g/cm3.AlSiC-12, containing 63 vol.% of A 356.2 aluminium alloy and 37 vol.% silicon carbide. Its thermal conductivity is 170–180 W/m K. It is compatible with generally the same materials as AlSiC-10. Its density at 25 °C is 2.89 g/cm3.AlSiC composites are suitable replacements for copper-molybdenum (CuMo) and copper-tungsten (CuW) alloys; they have about 1/3 the weight of copper, 1/5 of CuMo, and 1/6 of CuW, making them suitable for weight-sensitive applications; they are also stronger and stiffer than copper. They are stiff, lightweight, and strong. They can be used as heatsinks, substrates for power electronics (e.g. IGBTs and high-power LEDs), heat spreaders, housings for electronics, and lids for chips, e.g. microprocessors and ASICs. Metal and ceramic inserts and channels for a coolant can be integrated into the parts during manufacture. AlSiC composites can be produced relatively inexpensively (USD 2-4/lb in large series); the dedicated tooling however causes large up-front expenses, making AlSiC more suitable for mature designs. Heat pipes can be embedded into AlSiC, raising effective heat conductivity to 500–800 W/m K.AlSiC parts are typically manufactured by near net shape approach, by creating a SiC preform by metal injection molding of an SiC-binder slurry, fired to remove the binder, then infiltrated under pressure with molten aluminium. Parts can be made with sufficiently low tolerances to not require further machining. The material is fully dense, without voids, and is hermetic. High stiffness and low density appears making larger parts with thin wall, and manufacturing large fins for heat dissipation. AlSiC can be plated with nickel and nickel-gold, or by other metals by thermal spraying. Ceramic and metal insets can be inserted into the preform before aluminium infiltration, resulting in a hermetic seal. AlSiC can be also prepared by mechanical alloying. When lower degree of SiC content is used, parts can be stamped from AlSiC sheets.The aluminium matrix contains high amount of dislocations, responsible for the strength of the material. The dislocations are introduced during cooling by the SiC particles, due to their different thermal expansion coefficient.A similar material is Dymalloy, with copper-silver alloy instead of aluminium and diamond instead of silicon carbide. Other materials are copper reinforced with carbon fiber, diamond-reinforced aluminium, reinforced carbon-carbon, and pyrolytic graphite.".
- AlSiC wikiPageID "25888824".
- AlSiC wikiPageLength "5364".
- AlSiC wikiPageOutDegree "51".
- AlSiC wikiPageRevisionID "682743864".
- AlSiC wikiPageWikiLink Aluminium.
- AlSiC wikiPageWikiLink Aluminium_alloy.
- AlSiC wikiPageWikiLink Aluminium_nitride.
- AlSiC wikiPageWikiLink Aluminium_oxide.
- AlSiC wikiPageWikiLink Application-specific_integrated_circuit.
- AlSiC wikiPageWikiLink Carbon-fiber-reinforced_polymer.
- AlSiC wikiPageWikiLink Category:Aluminium_alloys.
- AlSiC wikiPageWikiLink Category:Chip_carriers.
- AlSiC wikiPageWikiLink Category:Metal_matrix_composites.
- AlSiC wikiPageWikiLink Ceramic.
- AlSiC wikiPageWikiLink Co-fired_ceramic.
- AlSiC wikiPageWikiLink Coolant.
- AlSiC wikiPageWikiLink Copper.
- AlSiC wikiPageWikiLink Copper–tungsten.
- AlSiC wikiPageWikiLink CuMo.
- AlSiC wikiPageWikiLink Diamond.
- AlSiC wikiPageWikiLink Dislocation.
- AlSiC wikiPageWikiLink Duroid.
- AlSiC wikiPageWikiLink Dymalloy.
- AlSiC wikiPageWikiLink FR-4.
- AlSiC wikiPageWikiLink Gallium_arsenide.
- AlSiC wikiPageWikiLink Gold_plating.
- AlSiC wikiPageWikiLink Heat_pipe.
- AlSiC wikiPageWikiLink Indium_phosphide.
- AlSiC wikiPageWikiLink Insulated-gate_bipolar_transistor.
- AlSiC wikiPageWikiLink Light-emitting_diode.
- AlSiC wikiPageWikiLink Mechanical_alloying.
- AlSiC wikiPageWikiLink Metal_injection_molding.
- AlSiC wikiPageWikiLink Metal_matrix_composite.
- AlSiC wikiPageWikiLink Microelectronics.
- AlSiC wikiPageWikiLink Microprocessor.
- AlSiC wikiPageWikiLink Molybdenum.
- AlSiC wikiPageWikiLink Multi-chip_module.
- AlSiC wikiPageWikiLink Near_net_shape.
- AlSiC wikiPageWikiLink Nickel.
- AlSiC wikiPageWikiLink Power_electronic_substrate.
- AlSiC wikiPageWikiLink Power_semiconductor_device.
- AlSiC wikiPageWikiLink Printed_circuit_board.
- AlSiC wikiPageWikiLink Pyrolytic_carbon.
- AlSiC wikiPageWikiLink Reinforced_carbon–carbon.
- AlSiC wikiPageWikiLink Silicon.
- AlSiC wikiPageWikiLink Silicon_carbide.
- AlSiC wikiPageWikiLink Silicon_nitride.
- AlSiC wikiPageWikiLink Substrate_(electronics).
- AlSiC wikiPageWikiLink Thermal_conductivity.
- AlSiC wikiPageWikiLink Thermal_expansion.
- AlSiC wikiPageWikiLink Thermal_spraying.
- AlSiC wikiPageWikiLink Tungsten.
- AlSiC wikiPageWikiLink Waste_heat.
- AlSiC wikiPageWikiLinkText "AlSiC".
- AlSiC wikiPageUsesTemplate Template:Citation_needed.
- AlSiC wikiPageUsesTemplate Template:Reflist.
- AlSiC subject Category:Aluminium_alloys.
- AlSiC subject Category:Chip_carriers.
- AlSiC subject Category:Metal_matrix_composites.
- AlSiC hypernym Metal.
- AlSiC type Band.
- AlSiC type Circuit.
- AlSiC comment "AlSiC, pronounced \"alsick\", is a metal matrix composite consisting of aluminium matrix with silicon carbide particles. It has high thermal conductivity (180–200 W/m K), and its thermal expansion can be adjusted to match other materials, e.g. silicon and gallium arsenide chips and various ceramics.".
- AlSiC label "AlSiC".
- AlSiC sameAs Q4703425.
- AlSiC sameAs m.09v81g8.
- AlSiC sameAs Q4703425.
- AlSiC wasDerivedFrom AlSiC?oldid=682743864.
- AlSiC isPrimaryTopicOf AlSiC.