Abstract: Flexible and modular top and bottom side processor unit module cooling is disclosed. An example apparatus comprises a printed circuit board including an integrated circuit component on a first side of the printed circuit board, and an electronic component on a second side of the printed circuit board, the second side facing away from the first side; a stiffener to at least partially enclose the printed circuit board, and a flexible strap to thermally couple the electronic component and a portion of the stiffener, the portion of the stiffener positioned adjacent the first side of the printed circuit board.

Abstract: A processor unit module comprises an integrated circuit component attached to a top side of a printed circuit board and one or more electronic components (e.g., voltage regulator FETs, inductors) attached to a bottom side of the board. The printed circuit board is located between a top stiffener plate and a bottom stiffener frame and the three components are secured together by fasteners that connect the top stiffener plate to the bottom stiffener frame. Flexible thermal straps connect the top stiffener plate to one or more slugs located between the printed circuit board and the bottom stiffener frame. The slugs touch the bottom side of the board and are held in place by the bottom stiffener frame. Heat generated by the bottom side components is transported by the slugs and the thermal straps to a thermal management solution (e.g., heat sink, cold plate) attached to the top side of the module.

Abstract: Heat pipes and vapor chambers that are components of a DIMM cooling assembly are described.

Abstract: Cold plates for secondary side components of printed circuit boards are disclosed herein. An example apparatus disclosed herein includes a first printed circuit board, a second printed circuit board coupled to the first printed circuit board, the second printed circuit board having a first side and a second side opposite the first side, the second side facing the first printed circuit board, and a cold plate coupled to the second side of the second printed circuit board.

Abstract: Techniques for liquid cooling systems are disclosed. In one embodiment, a hermetically sealed container includes an integrated circuit component and a two-phase coolant. As the integrated circuit component generates heat, the coolant boils, rising to a lid of the container. A cold plate mated with the lid absorbs heat from the lid, causing condensation of the coolant on the underside of the lid. The coolant then drips back down towards the integrated circuit component. Other embodiments are disclosed.

Abstract: A processor unit module comprises an integrated circuit component attached to a top side of a printed circuit board and one or more electronic components (e.g., voltage regulator FETs, inductors) attached to a bottom side of the board. The printed circuit board is located between a top stiffener plate and a bottom stiffener frame and the three components are secured together by fasteners that connect the top stiffener plate to the bottom stiffener frame. Flexible thermal straps connect the top stiffener plate to one or more slugs located between the printed circuit board and the bottom stiffener frame. The slugs touch the bottom side of the board and are held in place by the bottom stiffener frame. Heat generated by the bottom side components is transported by the slugs and the thermal straps to a thermal management solution (e.g., heat sink, cold plate) attached to the top side of the module.

Abstract: A quick disconnect fitting includes a plug and a socket to receive the plug. The plug includes a fluid channel, an inlet to the fluid channel, and a pressure regulating valve assembly. The valve can include a poppet, and a valve nozzle comprising an orifice. The valve assembly resides in the fluid channel. The socket includes a socket stem to contact the valve assembly and push the valve assembly into the fluid channel of the plug upon the socket receiving the plug.

Abstract: Two liquid cooling mechanisms are provided for cooling integrated circuit components immersed in an open bath immersion tank. In the first mechanism, heat generated by high-thermal design power (TDP) components is absorbed by a working fluid passing through cold plates coupled to the high-TDP components. The cold plates are part of direct liquid cooling loops attached to supply and return manifolds fluidly connected to a cooling distribution unit. In the second mechanism, integrated circuit components not coupled to any of the direct liquid cooling loops dissipate heat directly to the immersion fluid. In some embodiments, the tank is a closed bath immersion tank and heat captured by the working fluid is reclaimed and converted to electricity. Working fluid flow rate can be adjusted based on integrated circuit component power consumption levels to achieve a desired working fluid temperature as it enters an energy reclamation unit.

Abstract: A variable conductance heat pipe (VCHP) is utilized as a “passive heat switch” to regulate a characteristic temperature of an integrated circuit component. The VCHP is located between an integrated circuit component and a cold plate and comprises a working fluid and a non-condensable gas in a chamber. When the component is not operational, the VCHP blocks the flow of heat from the component to the cold plate. As component power consumption increases, the working fluid pressure increases and compresses the non-condensable gas toward the cooler region of the cold plate to eventually create a low thermal resistance path between the component and the cold plate. By introducing negative feedback into the thermal management solution, the VCHP keeps the characteristic temperature within a narrow range. This can alleviate stress on package components (e.g., solder joints) due to excessive thermal cycling, which can extend the lifetime of the component.