摘要:
A liquid metal thermal interface for an integrated circuit die. The liquid metal thermal interface may be disposed between the die and another heat transfer element, such as a heat spreader or heat sink. The liquid metal thermal interface includes a liquid metal in fluid communication with a surface of the die, and liquid metal moving over the die surface transfers heat from the die to the heat transfer element. A surface of the heat transfer element may also be in fluid communication with the liquid metal. Other embodiments are described and claimed.
摘要:
A microchannel structure has microchannels formed therein. The microchannels are to transport a coolant and to be proximate to an integrated circuit to transfer heat from the integrated circuit to the coolant. At least one of the microchannels has a length extent and has a first section at a first location along the length extent and a second section at a second location along the length extent. The first section of the microchannel has a first aspect ratio and the second section is divided into at least two sub-channels. Each sub-channel has a respective second aspect ratio that is greater than the first aspect ratio.
摘要:
An apparatus includes a microchannel structure having microchannels formed therein. The microchannels are to transport a coolant and to be proximate to an integrated circuit to transfer heat from the integrated circuit to the coolant. The apparatus also includes a cover positioned on the microchannel structure to define a respective upper wall of each of the microchannels. The cover presents a compliant surface to the microchannels.
摘要:
A heat-transfer device has a sealed vapor chamber with a phase-change fluid therein, and a thermoelectric cooling (TEC) element with a cooled side in thermal contact with the vapor chamber and a heated side in contact with heat-dissipation fins. The TEC element decreases the temperature of the vapor chamber and increases the temperature of the fins for improved efficiency. The vapor chamber is defined between concentrically positioned tubes, and a tunnel region is located within the inner tube. Additional TEC elements within the tunnel region further dissipate heat. In two-phase natural convection embodiments, TEC elements may further cool liquid returning to the heat source. Parallel heat dissipation paths may also be provided. In a two-phase forced convection embodiment, a TEC element may further cool liquid returning to the heat source, and additional TEC elements may be provided on the condenser. In some embodiments, active feedback controls the amount of energy transferred by a TEC element.
摘要:
A phase change heat exchanger and method for cooling a heat dissipating electronic component, such as an electronics package, transfers heat from the electronic component by way of a heatsink including a base in heat conducting relation with the electronic component and fins arranged in heat conducting relation at one end thereof with the base. The efficiency of the fins is increased by also transferring heat from the base to the fins at a location spaced from the one end thereof using a phase change fluid separated from the fins. A chamber containing the phase change fluid is defined between two telescoping tubes which extend peripherally about the fins to form a tunnel or duct through which a cooling fluid such as air can be flowed in contact with the fins. A further increase in cooling efficiency is obtained using an additional remote heat exchangers attached to the surface of the chamber.
摘要:
An apparatus and associated method to provide localized cooling to a microelectronic device are generally described. In this regard, according to one example embodiment, a cooling apparatus comprising a heat spreader and one or more thermoelectric cooler(s) thermally coupled to the heat spreader provides cooling to one or more hot spot(s) of a microelectronic device, the one or more thermoelectric cooler(s) having a single heat exchanging element of a single material.
摘要:
A multi-layer piezoelectric actuator with conductive polymer electrodes is described. The piezoelectric actuator comprises a stack of alternating conductive electrode layers and piezoelectric layers. The conductive electrode layers are comprised of a polymeric electrically conductive material. A device for cooling by forced-air convection may comprise the piezoelectric actuator, a fan blade and an alternating current supply. The piezoelectric actuator coupled with the fan blade and the alternating current supply, which is provided for vibrating the fan blade. A method of cooling by forced-air convection comprises supplying an alternating current to the piezoelectric actuator, wherein the alternating current has a frequency and causes the fan blade to vibrate with the same frequency.
摘要:
A multi-layer piezoelectric actuator with conductive polymer electrodes is described. The piezoelectric actuator comprises a stack of alternating conductive electrode layers and piezoelectric layers. The conductive electrode layers are comprised of a polymeric electrically conductive material. A device for cooling by forced-air convection may comprise the piezoelectric actuator, a fan blade and an alternating current supply. The piezoelectric actuator coupled with the fan blade and the alternating current supply, which is provided for vibrating the fan blade. A method of cooling by forced-air convection comprises supplying an alternating current to the piezoelectric actuator, wherein the alternating current has a frequency and causes the fan blade to vibrate with the same frequency.
摘要:
A method, apparatus, and system related to thermal management. The method includes reducing a temperature of a stream of air upstream of at least one memory module by a heat absorption component of a refrigeration device, moving the stream of air into contact with at least one surface of the at least one memory module and transferring heat provided by the at least one memory module and a heat rejection component of the refrigeration device to a location downstream of the at least one memory module.
摘要:
Piezoelectric fan assemblies are provided to provide a conduction path and forced convection for space-limited electronic devices in accordance with embodiments of the present invention. The fan blade of a piezoelectric fan is thermally coupled to the heat source, such as, but not limited to, the fins of a heat sink, the condenser of the heat pipe, and to the thermal mass of a heat spreader or block. The high amplitude resonant vibration of the fan blade causes formation of a high velocity unidirectional flow stream. Maximum airflow occurs on axes of the piezoelectric fan's centerline, relative to both width and height dimensions. Air intake is above and below the swept out plane of the fan blade. The air flow provides forced convection for the fan blade and, secondarily, for the heat source.