Abstract:
A speaker having a voice coil is disclosed. The voice coil includes two parallel main members and two linking members connecting the two main members for forming a closed loop, one of the linking member having at least a first part from a first circle having a first diameter, and at least a second part from a second circle having a second diameter greater than the first diameter.
Abstract:
An embedded metal heat sink for a semiconductor device is described. The embedded metal heat sink for a semiconductor device comprises a metal thin layer, a metal heat sink and two bonding pads. The metal thin layer including a first surface and a second surface on opposite sides, wherein at least one semiconductor device is embedded in the first surface of the metal thin layer, and the semiconductor device has two electrodes with different conductivity types. The metal heat sink is deposited on the second surface of the metal thin layer. The bonding pads are deposed on the first surface of the metal thin layer around the semiconductor device and are respectively corresponding to the electrodes, wherein the electrodes are electrically and respectively connected to the corresponding bonding pads by at least two wires, and the bonding pads are electrically connected to an outer circuit.
Abstract:
A light-emitting device and a process for manufacturing the same are described. The light-emitting device comprises: a thin metal layer including a first surface and a second surface on opposite sides; a metal heat sink directly formed and closely connected to the second surface of the thin metal layer; and a light-emitting chip deposed on a portion of the first surface of the thin metal layer, wherein the thin metal layer directly contacts and is closely connected with the light-emitting chip.
Abstract:
Method for producing foamed microporous polymer molded bodies by melting a thermoplastic polymer in a first zone of an extrusion device, mixing in a highly volatile blowing agent, conveying the polymer melt containing the blowing agent into a second zone in which dissolution of the blowing agent occurs to saturation of the polymer melt at the foaming temperature, and molding and foaming of the loaded polymer melt to a foamed structure, whereby, in the second zone, a pressure above 90 bar, a blowing agent concentration above the critical minimum concentration for complete foaming, and the foaming temperature, lying above the solidification temperature of the polymer melt saturated with blowing agent, are set such that the polymer molded body obtained has a porosity in the range between 40 and 90 vol. % and an open-cell pore structure with uniform cross-sectional distribution. Foamed microporous polymer molded bodies in the form of particles comprising a thermoplastic polymer with uniform open-cell pore structure, a porosity of 40 to 90 vol. %, an accessible proportion of pore volume of at least 0.75 and an average cell size between 1 and 100 μm.
Abstract:
The invention provides a server, a method and a system for providing node information for P2P network. A server in a peer-to-peer (P2P) network comprises: a location information storage unit which stores coordinate information indicating a coordinate of each data node in the P2P network in a coordinate system that is created based on communication delays among data nodes in the P2P network; and a node information providing unit which, upon receipt of a request for information on data nodes having a first data item, selects one or more data nodes from data nodes having the first data item based on the coordinate information, and provides information indicating the selected one or more data nodes.
Abstract:
The present disclosure provides an addressing method, an addressing apparatus, a fabric manager, a switch, and a data routing method for data center networks. The addressing apparatus includes a tree creating unit for, sequentially with each of switches as a root, creating a tree containing all hosts by means of network topology discovery function, to obtain a plurality of trees; a tree selecting unit for selecting a tree having a minimum height among the created plurality of trees; and an address assigning unit for assigning addresses to each of switches and each of hosts in a network with respect to each selected tree having a minimum height. The present disclosure is adaptable to various topologies employed by the data center. The present disclosure can achieve aggregation of locator addresses so that a forwarding table can be shortened, and can achieve load balance of the network.
Abstract:
Method for producing foamed microporous polymer molded bodies by melting a thermoplastic polymer in a first zone of an extrusion device, mixing in a highly volatile blowing agent, conveying the polymer melt containing the blowing agent into a second zone in which dissolution of the blowing agent occurs to saturation of the polymer melt at the foaming temperature, and molding and foaming of the loaded polymer melt to a foamed structure, whereby, in the second zone, a pressure above 90 bar, a blowing agent concentration above the critical minimum concentration for complete foaming, and the foaming temperature, lying above the solidification temperature of the polymer melt saturated with blowing agent, are set such that the polymer molded body obtained has a porosity in the range between 40 and 90 vol. % and an open-cell pore structure with uniform cross-sectional distribution. Foamed microporous polymer molded bodies in the form of particles comprising a thermoplastic polymer with uniform open-cell pore structure, a porosity of 40 to 90 vol. %, an accessible proportion of pore volume of at least 0.75 and an average cell size between 1 and 100 μm.
Abstract:
A method for manufacturing a heat sink of a semiconductor device is described. In the method, an adhesive tape is provided, wherein the adhesive tape includes a first surface and a second surface on opposite sides, and the first surface of the adhesive tape adheres to a surface of a temporary substrate. At least one semiconductor device is provided, wherein the semiconductor device includes a first side and a second side opposite to the first side, and the first side of the one semiconductor device is pressed and set into a portion of the second surface of the adhesive tape, and the second side of the one semiconductor device is exposed. A thin metal layer is formed on the second side of the semiconductor device and the exposed portion of the second surface of the adhesive tape. A metal heat sink is formed on the thin metal layer. Then, the adhesive tape and the temporary substrate are removed.
Abstract:
An auto-adjusting high accuracy oscillator is disclosed, which comprises: a frequency comparator, for comparing a synchronization signal obtained from a USB host with an oscillation signal obtain from a device; a control tuning circuit, further comprising a counter and an adder/sub circuit; and an oscillating element; wherein a variation is obtained by the counting of the counter while transmitting the variation to the adder/sub circuit to be encoded thereby into a digital code so as to enable the oscillating element to perform a frequency up/down operation accordingly for approaching the synchronization signal successively.
Abstract:
A speaker having a voice coil is disclosed. The voice coil includes two parallel main members and two linking members connecting the two main members for forming a closed loop, one of the linking member having at least a first part from a first circle having a first diameter, and at least a second part from a second circle having a second diameter greater than the first diameter.