Abstract: Optical communication apparatus comprises: a first IC assembly disposed at a first PCB and comprising: a first IC package electrically coupled to circuits of the first PCB and having an opening in a bottom layer thereof; a first array of optical elements disposed in and electrically coupled to the first IC package and aligned with the bottom layer opening; and a tube of optical fibers disposed in the bottom layer opening with one end aligned under the first array and another end protruding out from the bottom layer of the first package and extending through a hole in the first PCB; a second IC assembly disposed at a second PCB, arranged in parallel with the first PCB, and comprising: a second IC package electrically coupled to circuits of the second PCB and having an opening in a top layer thereof; and a second array of optical elements disposed at the second IC package and electrically coupled thereto through the top layer opening; and wherein the second array being optically aligned with the optical fiber t

Abstract: Apparatus for connecting an interconnecting cable between first and second printed circuit (PC) boards comprises: a base member disposed on a side of the first PC board for fixedly attaching one end of the interconnecting cable to the first PC board; a first connector attached to the other end of the interconnecting cable; a second connector disposed on a side of the second PC board; and a spring member attached to the base member for supporting the first connector away from the side of the first PC board, the spring member operative to force the first connector against the side of the second PC board to cause slidable engagement of the first and second connectors when one of the first and second PC boards is slid past the other of the first and second PC boards.

Abstract: A cable assembly comprising a hollow sleeve, an electrical conductor within the hollow sleeve, and first and second connectors on opposing ends of the electrical conductor that are fastened to opposing ends of the sleeve. The first connector is adapted to blind-mate to a corresponding connector in a cabinet backplane and the second connector is adapted to couple to an electronic device to be installed in the cabinet. Power is provided from the backplane to the electronic device via the electrical conductor. The hollow sleeve is disposed within a tunnel supported by the cabinet. The hollow sleeve has a length greater than that of the tunnel such that the first connector protrudes from a first opening of the tunnel and the second connector protrudes from a second opening of the tunnel.

Abstract: In one embodiment, fiber assemblies are provided. The fiber assemblies may have a first fiber and a second fiber. The first fiber may have at least one core having a length and first and second ends. The second end may have a first connector. The second fiber may have at least one core having a length and first and second ends. The second end may have a second connector having at least one magnet. The first connector may be engaged to the second connector, and the at least one magnet may be operated to engage the first connector to the second connector.

Abstract: A method for providing electrical signal transmission and a secure mechanical attachment in a flexible circuit assembly. The inventive mechanism combines the electrical features of discrete wiring with the mechanical features of etched pads connected to plated vias on flex circuits in order to achieve robustness in both the mechanical and electrical properties. A discrete wire is preferably securely bonded to a conductive pad which pad is then securely attached to a plated via. In this manner, the sequence of connections is made mechanically secure by either ultrasonically bonding or welding the discrete wire to the pad and employing the traditionally robust connection between the pad and the via. The arrangement achieves high quality electrical signal transmission by employing discrete wiring for signal transmission along any path of significant length.

Abstract: A circuit module including at least one Application Specific Integrated Circuit (ASIC) and a plurality of Vertical Cavity Surface-Emitting Laser (VCSEL) array modules is built using a standard ceramic or organic VLSI package substrate, resulting is a high density device with a small footprint. Interconnection between the electronic devices and the VCSEL array modules is accomplished using standard integrated circuit packaging technology and flexible connectors. Optical connections from the VCSEL arrays to fiber optic cables are made possible by integrating industry-standard optical connectors onto the package. Optical receiver and transceiver modules may also be incorporated into the circuit module.

Abstract: A circuit module including at least one Application Specific Integrated Circuit (ASIC) and a plurality of Vertical Cavity Surface-Emitting Laser (VCSEL) array modules is built using a standard ceramic or organic Multi-Chip Module (MCM) package substrate, resulting is a high density device with a small footprint. Interconnection between the electronic devices and the VCSEL array modules is accomplished using standard integrated circuit packaging technology and flexible connectors. Optical connections from the VCSEL arrays to fiber optic cables are made possible by integrating industry-standard optical connectors onto the package. Optical receiver and transceiver modules may also be incorporated into the circuit module.

Abstract: One embodiment of the invention is a system comprising a first component that generates heat, and a second component that is thermally connected to the first component, wherein the heat from the first component is transferred to a coolant through the second component, and the second component has a function in the computer system associated with an operation of the system other than transferring heat.

Abstract: A circuit module including at least one Application Specific Integrated Circuit (ASIC) and a plurality of Vertical Cavity Surface-Emitting Laser (VCSEL) array modules is built using a standard ceramic or organic Multi-Chip Module (MCM) package substrate, resulting is a high density device with a small footprint. Interconnection between the electronic devices and the VCSEL array modules is accomplished using standard integrated circuit packaging technology and flexible connectors. Optical connections from the VCSEL arrays to fiber optic cables are made possible by integrating industry-standard optical connectors onto the package. Optical receiver and transceiver modules may also be incorporated into the circuit module.

Abstract: One embodiment of the invention is a system comprising a first component that generates heat, and a second component that is thermally connected to the first component, wherein the heat from the first component is transferred to a coolant through the second component, and the second component has a function in the computer system associated with an operation of the system other than transferring heat.

Abstract: A low-cost EMI shield that fits around an integrated circuit package to absorb electromagnetic energy and dissipate it as heat. The shield is not ohmically conductive so it may contact electrically active conductors without affecting the operation of the circuit. EMI is prevented from being radiated by and around an integrated circuit package by a perimeter of material that is lossy to high-frequency electromagnetic currents. This perimeter is fitted around an integrated circuit package such that the gap between a heat sink or other top conductor and the printed circuit board is completely closed by the lossy material. This provides not only a line-of-sight obstruction to RF currents, but also provides a lossy return path to close the circuit loop for currents on the skin of the heat sink. Since the material is lossy, rather than purely conductive, it can be used with a less than perfect ground attachment.

Abstract: One embodiment of the invention is a system comprising a first component that generates heat, and a second component that is thermally connected to the first component, wherein the from the first component is transferred to a coolant through the second component, and the second component has a function in the computer system associated with an operation of the system other than transferring heat.

Abstract: A subtractive process for the fabrication of cylindrical printed circuit boards is presented. Layers of metal and dielectric are sequentially placed on the outside of a cylindrical form. The form may be rotated about its longitudinal axis during many of the process steps allowing automatic application of dielectric and metal layers and also allows controllable curing and etching processes.

Abstract: An assembly comprising an integrated cooling system/liquid containment system/EMI shield/pump housing/heat sink is built atop a multi-chip module. The attached devices are cooled by a spray of fluid, effecting a phase change from liquid to gas at the point of evaporation. Condensing liquid accumulates at the base of the fins and is collected by a pump for redistribution. The pump is coupled to a fan blade, which in turn is operated by a motor. A seal is formed between the multi-chip module and the integrated housing. The assembly is designed such that this seal need not be broken to service the motor, thus minimizing the amount of vapors from the working fluid lost into the atmosphere. Case fins and fan blades are arranged for improved efficiency.

Abstract: An assembly comprising an integrated cooling system/liquid containment system/EMI shield/pump housing/heat sink is built atop a multi-chip module. The attached devices are cooled by a spray of fluid, effecting a phase change from liquid to gas at the point of evaporation. Condensing liquid accumulates at the base of the fins and is collected by a pump for redistribution. The pump is coupled to a fan blade, which in turn is operated by a motor. A seal is formed between the multi-chip module and the integrated housing. The assembly is designed such that this seal need not be broken to service the motor, thus minimizing the amount of vapors from the working fluid lost into the atmosphere. Case fins and fan blades are arranged for improved efficiency.

Abstract: A low-cost EMI shield that fits around an integrated circuit package to absorb electromagnetic energy and dissipate it as heat. The shield is not ohmically conductive so it may contact electrically active conductors without affecting the operation of the circuit. EMI is prevented from being radiated by and around an integrated circuit package by a perimeter of material that is lossy to high-frequency electromagnetic currents. This perimeter is fitted around an integrated circuit package such that the gap between a heat sink or other top conductor and the printed circuit board is completely closed by the lossy material. This provides not only a line-of-sight obstruction to RF currents, but also provides a lossy return path to close the circuit loop for currents on the skin of the heat sink. Since the material is lossy, rather than purely conductive, it can be used with a less than perfect ground attachment.

Abstract: An assembly comprising an integrated cooling system/liquid containment system/EMI shield/pump housing/heat sink is built atop a multi-chip module. The attached devices are cooled by a spray of fluid, effecting a phase change from liquid to gas at the point of evaporation. Condensing liquid accumulates at the base of the fins and is collected by a pump for redistribution. The pump is coupled to a fan blade, which in turn is operated by a motor. A seal is formed between the multi-chip module and the integrated housing. The assembly is designed such that this seal need not be broken to service the motor, thus minimizing the amount of vapors from the working fluid lost into the atmosphere. Case fins and fan blades are arranged for improved efficiency.

Abstract: A system and method is described which provides for electrical signal transmission and a secure mechanical attachment in a flexible circuit assembly. The inventive mechanism combines the electrical features of discrete wiring with the mechanical features of etched pads connected to plated vias on flex circuits in order to achieve robustness in both the mechanical and electrical properties. A discrete wire is preferably securely bonded to a conductive pad which pad is then securely attached to a plated via. In this manner, the sequence of connections is made mechanically secure by either ultrasonically bonding or welding the discrete wire to the pad and employing the traditionally robust connection between the pad and the via. The arrangement achieves high quality electrical signal transmission by employing discrete wiring for signal transmission along any path of significant length.

Abstract: A system and method is described which provides for electrical signal transmission and a secure mechanical attachment in a flexible circuit assembly. The inventive mechanism combines the electrical features of discrete wiring with the mechanical features of etched pads connected to plated vias on flex circuits in order to achieve robustness in both the mechanical and electrical properties. A discrete wire is preferably securely bonded to a conductive pad which pad is then securely attached to a plated via. In this manner, the sequence of connections is made mechanically secure by either ultrasonically bonding or welding the discrete wire to the pad and employing the traditionally robust connection between the pad and the via. The arrangement achieves high quality electrical signal transmission by employing discrete wiring for signal transmission along any path of significant length.

Abstract: A process for the fabrication of cylindrical circuit boards. The process is easily manufacturable since rotation of the cylindrical printed circuit board about its longitudinal axis enables automatic application of dielectric and metal layers and also allows controllable curing and etching processes. Metal layers may be constructed as planar layers or as stripline layers and both may be used in combination within a single cylindrical circuit board.