Abstract: A two-phase thermal syphon assembly includes a plate and one or more thermal syphon pipes. The plate is configured to extract heat from one or more heat-generating devices in contact therewith. The plate has surfaces that define a volume thereof. The surfaces include a first flat surface, a second flat surface that extends in a horizontal plane parallel to a plane in which the first flat surface extends, and one or more side surfaces extending between the first and second flat surfaces. The side surfaces have a distance between the first and second flat surfaces that is less than distances on the first flat surface between the side surfaces and distances on the second flat surface between the side surfaces. Each of the flat surfaces is configured to respectively contact one of the heat-generating devices to extract heat therefrom.

Abstract: A method of manufacturing a complex heat pipe includes joining a pipe to a circumference of a hole of a closed chamber, positioning the closed chamber within a fixture after the joining, and expanding deformed walls of the closed chamber to conform to walls of the fixture that correspond with the deformed closed chamber walls.

Abstract: A hybrid heat pipe assembly includes a baseplate dimensioned to be placed in surface contact with a device. The baseplate is configured to extract heat from the device. A plurality of fins is bonded to the baseplate. The fins are configured to transfer a first portion of the extracted heat from the baseplate to air surrounding the fins. A complex heat pipe extends from the baseplate and has an end positioned within the baseplate. The complex heat pipe is configured to receive and transfer a second portion of the extracted heat transferred from the baseplate. The complex heat pipe is configured to transfer the second portion of heat to a heat pipe fin stack to which.