Abstract:
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.
Abstract:
A piezo actuator includes a plurality of layers of ceramic material, a plurality of layers of conductive material interspersed between the plurality of layers of ceramic material, and a plate attached to an end of the actuator. The plate of the piezo actuator includes an overhang portion.
Abstract:
A method and apparatus for removing vapor inside a liquid pump (110) at the start up operation of the pump. In addition, a method and apparatus for removing liquid inside a compressor (210) at the start up operation of the compressor. The pump and compressor each include a sensor (120, 220) attached to them that determines the physical state (i.e., liquid or vapor) of a material inside the pump or compressor. If vapor is detected inside the pump, a thermoelectric module (130) connected to the pump is powered to condense the vapor into a liquid. Likewise, if liquid is detected inside the compressor a heater (230) connected to the compressor is powered to evaporate the liquid into a vapor. After the state of the material inside the pump or compressor is changed, the pump or compressor is powered up for operation in a cooling system.
Abstract:
Various embodiments of microelectronic package cooling assemblies are described. Those embodiments include a cooling assembly comprising an array of vertically separated micro channels coupled to a heat spreader, wherein the heat spreader is finless, and wherein each inlet micro channel has two adjacent outlet micro channels. A distance between individual vertically separated micro channels comprises less than about 20 microns, and a heat pipe is embedded in the heat spreader.
Abstract:
Various embodiments of thermal compression bonding transient cooling solutions are described. Those embodiments include a an array of vertically separated micro channels coupled to a heater surface, wherein every outlet micro channel comprises two adjacent inlet micro channel, and wherein an inlet and outlet manifold are coupled to the array of micro channels, and wherein the heater surface and the micro channels are coupled within the same block.
Abstract:
Thermal management systems for semiconductor devices are provided. Embodiments of the invention provide two or more liquid cooling subsystems that are each capable of providing active cooling to one or more semiconductor devices, such as packaged processors. In operation, a first liquid cooling subsystem can provide active cooling to the semiconductor device(s) while the second cooling subsystem is circulating a heat transfer fluid within its own subsystem. The second liquid cooling subsystem can be then switched into operation and provides active cooling to the semiconductor device(s) while the first cooling subsystem is circulating heat transfer fluid within its own subsystem. In alternate embodiments, the heat transfer fluid remains in the subsystem, but does not circulate within the subsystem when the subsystem is not providing cooling to the semiconductor device(s). The subsystems comprise heat dissipation units. The switching between cooling systems allows the semiconductor device(s) to be maintained at a lower operating temperature than if switching between cooling subsystems were not employed.
Abstract:
A piezo actuator includes a plurality of layers of ceramic material (301-305) a plurality of layers of conductive material (306-309) interspersed between the plurality of layers of ceramic material, and a plate (330) attached to a end of the actuator. The plate of the piezo actuator includes an overhang portion (332). Preferably the actuator further comprises a balde (310), injection molded around the plate, to constitute a fan.
Abstract:
A heat dissipating device (100). The heat dissipating device comprises a receptor plate (102) to be placed over a device that generates heat, an evaporator (106) coupling to the receptor plate (102), a condenser column (108) placed in fluid communication with the evaporator (106), and a set of condenser extension surfaces (110) extending from the condenser (108). The evaporator (106) includes a modulated porous layer (114) and stores liquid. The condenser column (108) includes a non-wetting surface (122). The condenser extension surface (110) facilitates heat dissipation.