Abstract:
A heat spreader for cooling an electronic component includes a lower plate, an upper plate fixed on the lower plate, a working liquid contained between the lower plate and the upper plate, and a wick structure formed between the lower plate and the upper plate. Each of the upper plate and the lower plate defines a cavity receiving a portion of the wick structure therein, and a plurality of grooves extending radially from the cavity to a periphery thereof.
Abstract:
A heat dissipation device for removing heat from LED chips includes a heat sink and a plurality of substrates. The heat sink comprises a base plate. A plurality of fins extends upwardly from the base plate. The substrates each have a unidirectional heat transfer and are attached to a bottom face of the heat sink. Each of the substrates defines a first wall on which The LED chips are mounted and a second wall coupled to the heat sink. The substrates only transfer heat from the first wall to the second wall and restrict the heat transfer in a reverse direction. When the LED chips generate heat, the heat is transferred to the fins of the heat sink via the unidirectional substrates to lower temperature of the LED chips.
Abstract:
A heat dissipation device for removing heat from LED chips includes a finned heat sink, a plurality of heat pipes and a plurality of heat conductive substrates. The heat sink comprises a base plate and a plurality of fins formed on the base plate. The heat pipes which transfer heat in a unidirectional manner are embedded in the base plate. Each of the heat pipes defines a first wall and a second wall coupled to the heat sink. The heat pipes only transfer heat from the first walls to the second walls and restrict a heat transfer in a reversed direction. The substrates are in contact with first walls of the heat pipes. The LED chips are mounted on the substrates. When the LED chips generate heat, the heat is transferred to the fins via the unidirectional heat pipes to lower the temperature of the LED chips.
Abstract:
A method to perform timing analysis for a complex logic cell with distorted input waveform and coupled load networks is presented. Timing arc based models are used in conjunction with CCB based current models of portions of the logic cell to compute the output signal of the logic cell. For example, an intermediary signal is generated using a first timing arc based model and an equivalent coupled network output signal is generated using a channel connected block (CCB) based current model.
Abstract:
A system and method for testing a Link Control Card (LCC) of a storage device includes a host, a middle plane (MP), a switch, and a testing device array. The host is connected to the testing device array for sending out command sets and receiving results. The MP is connected between the LCC and the testing device array. The switch determines the LCC to output hard reset signals and the hard reset signals are transferred to the testing device array via the MP. The testing device array includes a plurality of testing devices, and each of the testing devices includes a micro-controller unit (MCU); a connector being connected to the MCU, and coupled to the MP; an address setting unit being connected to the MCU, for setting an unique address of each of the testing devices; and a first interface being connected to the MCU for outputting results.
Abstract:
A memory module assembly includes a printed circuit board (10) having a heat-generating electronic component (14) thereon, and first and second heat-dissipation plates (20), (30) attached on opposite sides of the printed circuit board. The first heat-dissipation plate includes a first hook (24) extending from a side thereof and the first hook includes a resisting portion (242) extending from an end of the first heat-dissipation plate and a first engaging portion (244) extending from a free end of the resisting portion for resisting the printed circuit board and the second heat-dissipation plate. The second heat-dissipation plate defines a depressed portion (34) in a side thereof for engaging with the first hook. The other sides of the first and second heat-dissipation plates engage with each other to clamp the printed circuit board between the first and second heat-dissipation plates.
Abstract:
An LED module includes a latching component, a frame holding an LED thereon, a heat spreader located in the latching component and a heat transfer member having a heat-dissipating unit remote from the LED and a heat pipe thermally connecting with the heat spreader, the LED and the heat-dissipating unit. The latching component cooperates with the heat spreader to tightly press the frame being attached on the heat spreader. The heat transfer member thermally connects with the heat spreader and transfers heat from the LED to an ambient environment. The latching component has two spring pieces pushing the frame toward the heat spreader and the heat pipe. The spring pieces electrically engage with the frame to thereby electrically connect with the LED.
Abstract:
The invention provides human G-protein coupled receptors (GCREC) and polynucleotides which identify and encode GCREC. The invention also provides expression vectors, host cells, antibodies, agonists, and antagonists. The invention also provides methods for diagnosing, treating, or preventing disorders associated with aberrant expression of GCREC.
Abstract:
An LED module includes a latching component, a frame holding an LED thereon, a heat spreader located in the latching component and a heat transfer member having a heat-dissipating unit remote from the LED and a heat pipe thermally connecting with the heat spreader, the LED and the heat-dissipating unit. The latching component cooperates with the heat spreader to tightly press the frame being attached on the heat spreader. The heat transfer member thermally connects with the heat spreader and transfers heat from the LED to an ambient environment. The latching component has two spring pieces pushing the frame toward the heat spreader and the heat pipe. The spring pieces electrically engage with the frame to thereby electrically connect with the LED.
Abstract:
A memory module assembly includes a printed circuit board (10) having a main heat-generating electronic component (52) thereon, first and second heat sinks (20), (30) attached on opposite sides of the printed circuit board and a clamp (40) clamping the first, second heat sinks and the printed circuit board together. The first heat sink comprises a pair of positioning poles (24). The second heat sink comprises a heat pipe (36) disposed therein and thermally connecting therewith. The clamp comprises a connecting portion (42) and a pair of elastic pressing portions (44). The clamp resiliently presses the second heat sink toward the main heat-generating electronic component and the first heat sink engages with the second heat sink via the positioning poles of the first heat sink extending in and engaging with the second heat sink.