摘要:
A fabric material and method of its manufacture suitable for use in electronic packages including chip carriers. High insulation resistance is exhibited when subjected to high temperatures and humidity stress conditions.
摘要:
Composition and solder interconnection structure for its use, wherein the gap created by solder connections between a carrier substrate and a semiconductor chip device mounted thereon is filled with the solvent free formulation obtained by curing a preparation containing a cycloaliphatic polyepoxide and/or curable cyanate ester or prepolymer thereof, polyol, and filler which is substantially free of alpha particle emissions.
摘要:
A multilayered circuitized substrate including a plurality of dielectric layers each comprised of a p-aramid paper impregnated with a halogen-free, low moisture absorptivity resin including an inorganic filler but not including continuous or semi-continuous fiberglass fibers as part thereof, and a first circuitized layer positioned on a first of the dielectric layers. A method of making this substrate is also provided.
摘要:
A circuitized substrate including a dielectric layer having a p-aramid paper impregnated with a halogen-free, low moisture absorptivity resin and not including continuous or semi-continuous fiberglass fibers as part thereof, and a first circuitized layer positioned on the dielectric layer. A method of making this substrate is also provided.
摘要:
A multilayered circuitized substrate including a plurality of dielectric layers each comprised of a p-aramid paper impregnated with a halogen-free, low moisture absorptivity resin including an inorganic filler but not including continuous or semi-continuous fiberglass fibers as part thereof, and a first circuitized layer positioned on a first of the dielectric layers. A method of making this substrate is also provided.
摘要:
A circuitized substrate including a dielectric layer having a p-aramid paper impregnated with a halogen-free, low moisture absorptivity resin and not including continuous or semi-continuous fiberglass fibers as part thereof, and a first circuitized layer positioned on the dielectric layer. A method of making this substrate is also provided.
摘要:
A multilayered circuitized substrate including a plurality of dielectric layers each comprised of a p-aramid paper impregnated with a halogen-free, low moisture absorptivity resin including an inorganic filler but not including continuous or semi-continuous fiberglass fibers as part thereof, and a first circuitized layer positioned on a first of the dielectric layers. A method of making this substrate is also provided.
摘要:
Conductive materials that have low coefficients of thermal expansion (CTEs) and that are used for power and ground planes are disclosed. Fibrous materials (such as carbon, graphite, glass, quartz, polyethylene, and liquid crystal polymer fibers) with low CTEs are metallized to provide a resultant conductive material with a low CTE. Such fibers may be metallized in their individual state and then formed into a fabric, or these materials may be formed into a fabric and then metallized or a combination of both metallizations may be used. In addition, a graphite or carbon sheet may be metallized on one or both sides to provide a material that has a low CTE and high conductivity. These metallized, low CTE power and ground planes may be laminated with other planes/cores into a composite, or laminated into a core which is then laminated with other planes/cores into a composite. The resultant composite may be used for printed circuit boards (PCBs) or PCBs used as laminate chip carriers.
摘要:
A multilayered circuitized substrate including a plurality of dielectric layers each comprised of a p-aramid paper impregnated with a halogen-free, low moisture absorptivity resin including an inorganic filler but not including continuous or semi-continuous fiberglass fibers as part thereof, and a first circuitized layer positioned on a first of the dielectric layers. A method of making this substrate is also provided.
摘要:
Conductive materials that have low coefficients of thermal expansion (CTEs) and that are used for power and ground planes are disclosed. Fibrous materials (such as carbon, graphite, glass, quartz, polyethylene, and liquid crystal polymer fibers) with low CTEs are metallized to provide a resultant conductive material with a low CTE. Such fibers may be metallized in their individual state and then formed into a fabric, or these materials may be formed into a fabric and then metallized or a combination of both metallizations may be used. In addition, a graphite or carbon sheet may be metallized on one or both sides to provide a material that has a low CTE and high conductivity. These metallized, low CTE power and ground planes may be laminated with other planes/cores into a composite, or laminated into a core which is then laminated with other planes/cores into a composite. The resultant composite may be used for printed circuit boards (PCBs) or PCBs used as laminate chip carriers.