Abstract:
An apparatus includes a coldplate (104, 200) and a bus bar (204). The coldplate is configured to be thermally coupled to a structure (102) to be cooled and to remove thermal energy from the structure. The bus bar is integrated into the coldplate and is configured to deliver power to multiple components (108a-108b) of the structure. The apparatus may also include multiple mounting holes (202) positioned in rows on the coldplate and configured to mechanically couple the structure to the coldplate, where one of the bus bar or an additional bus bar is integrated between each pair of adjacent rows of mounting holes. The apparatus may further include sealed cooling channels (206) adjacent to the bus bar and each additional bus bar. The bus bar may be integrated into the coldplate using vacuum brazing or ultrasonic additive manufacturing.
Abstract:
A method of making a cold plate (10) includes the steps of positioning a finstock (16) structure in a cavity (14) of a substrate; (12) and applying a cover(18) to the finstock (16) structure and substrate (12), wherein the applying step comprises ultrasonically additive manufacturing the cover (18) to the substrate (12) and the finstock structure (16), whereby the cover (18) joins with the substrate (12) and the finstock structure (16). The resulting cold plate assembly (10) includes a substrate (12) having a cavity (14), a finstock structure (16) within the cavity (14), and a cover (18) closing the finstock structure (16) within the cavity (14), the cover (18) being integrally joined to the substrate (12) and to the finstock structure (16).
Abstract:
A multi-layer ceramic module (100, 100 1-n , 300, 400) is provided that includes an integrated temperature control (102, 302, 402) and a power switch (106, 306, 406, 412). The integrated temperature control is configured to dissipate thermal energy. The power switch is configured to couple a power source (310, 410) for a standard component (108, 308, 408) of the multi-layer ceramic module to the integrated temperature control.
Abstract:
An apparatus includes a printed circuit board (PCB) (200, 200a-200m, 705) including a surface (205) that has a layer of circuitry (215, 220, 225, 230, 235, 240, 245, 250, 255, 260, 265, 709, 710). The apparatus also includes a heat sink (300) configured to receive heat from the PCB. The apparatus further includes a thermally- conductive post (400, 500, 707) configured to remove the heat from the PCB to the heat sink via thermal conduction through a thermal path. The thermal path is substantially orthogonal to the surface of the PCB. The post includes an end configured to physically couple to the layer of circuitry.
Abstract:
A radio frequency (RF) waveguide housing includes a metal-diamond base with a first surface and a second surface opposite the first surface. The metal-diamond base includes an opening through a thickness of the metal-diamond base, and the opening includes a first side on a side of the first surface of the metal-diamond base and a second side on a side of the second surface of the metal-diamond base. The RF waveguide housing also includes an insert to be inserted in the opening and affixed to the metal-diamond base. The insert defines an interior volume within the opening of the metal-diamond base and a shape of the insert at the first side of the opening is configured to match an end of an RF waveguide coupled to the RF waveguide housing.
Abstract:
A process for building a high-performance liquid flow-through plate is provided and includes providing a substrate formed of metal matrix composite (MMC) material, metallizing a surface of the substrate to reform the surface into a metallized surface, placing a braze foil on the metallized surface and executing a high-temperature and high-pressure bake whereby material of the braze foil diffuses into the metallized surface.
Abstract:
An apparatus includes a heat sink (110, 310, 510, 610, 706) configured to receive thermal energy from one or more heat sources (102, 202a-202c, 502). The heat sink includes a local reservoir (114) configured to hold a liquid coolant, and the heat sink is configured to pass the thermal energy into the liquid coolant in the local reservoir in order to vaporize at least some of the liquid coolant. The apparatus also includes a membrane (122, 706) configured to allow vaporized coolant to pass through the membrane out of the local reservoir into an ambient environment and to prevent unvaporized coolant from passing through the membrane. The membrane is thereby configured to provide passive flow control for the liquid coolant. The membrane could include a vapor-permeable and liquid-repelling membrane. The membrane can also be configured to hold the liquid coolant in the local reservoir against one or more surfaces of the heat sink.