Abstract: Examples of a thermal management unit and an electronic apparatus utilizing the thermal management unit are described. In one aspect, the thermal management unit includes a heat sink. The heat sink includes a base portion, a first protrusion structure and a second protrusion structure. The base portion has a first side and a second side opposite the first side. The first protrusion structure protrudes from the first side of the base portion, and includes multiple fins. The second protrusion structure protrudes from the second side of the base portion, and includes multiple ribs. The heat sink may be made of silicon.

Abstract: Examples of combining multiple laser beams into a single laser beam by using a circular or spiral diffraction grating are described. The multiple laser beams can be combined coherently or incoherently depending on the geometrical layout of the laser beams.

Abstract: Examples of a thermal management unit and an electronic apparatus utilizing the thermal management unit are described. In one aspect, the thermal management unit includes a heat sink. The heat sink includes a base portion, a first protrusion structure and a second protrusion structure. The base portion has a first side and a second side opposite the first side. The first protrusion structure protrudes from the first side of the base portion, and includes multiple fins. The second protrusion structure protrudes from the second side of the base portion, and includes multiple ribs. The heat sink may be made of silicon.

Abstract: Examples of combining multiple laser beams into a single laser beam by using a circular or spiral diffraction grating are described. The multiple laser beams can be combined coherently or incoherently depending on the geometrical layout of the laser beams.

Abstract: Embodiments of a three-dimensional silicon structure for integrated circuits and cooling thereof are described. In one aspect, a device includes a silicon substrate having a first primary side and a second primary side opposite the first primary side. The first primary side includes a circuit structure disposed thereon. The second primary side includes a plurality of fins monolithically formed thereon.

Abstract: In one aspect, an apparatus comprises a substrate, a first electrically-driven device disposed on the substrate, a second electrically-driven device disposed on the substrate, and a composite heat sink device. The composite heat sink device comprises a first thermal conduction member, a second thermal conduction member, and a thermal insulation member. The first thermal conduction member is disposed on the first electrically-driven device such that at least a portion of the heat generated by the first electrically-driven device is transferred to the first thermal conduction member by conduction. The second thermal conduction member is disposed on the second electrically-driven device such that at least a portion of the heat generated by the second electrically-driven device is transferred to the second thermal conduction member by conduction. The thermal insulation member is disposed between and thermally decouples the first thermal conduction member and the second thermal conduction member from one another.

Abstract: A thermal energy storage apparatus that absorbs thermal energy from a heat-generating device is described. In one aspect, the thermal energy storage apparatus comprises a non-metal container and a phase-change material. The non-metal container is configured to receive the heat-generating device thereon. The phase-change material is contained in the non-metal container and configured to absorb at least a portion of heat from the heat-generating device through the non-metal container.

Abstract: Embodiments of a silicon-based heat dissipation device and a chip module assembly are described. An apparatus includes a chip module assembly that includes a silicon-based heat dissipation device and an extended device coupled to the silicon-based heat dissipation device. The silicon-based heat dissipation device includes a base portion having a first primary side and a second primary side opposite the first primary side. The silicon-based heat dissipation device also includes a protrusion portion on the first primary side of the base portion and protruding therefrom, with the protrusion portion having a plurality of fins. The extended device includes an extended layer. The second primary side of the base portion is configured to receive one or more heat-generating devices thereon such that at least a portion of heat generated by the one or more heat-generating devices is dissipated to the silicon-based heat-dissipation device by conduction.

Abstract: Examples of a silicon cold plate with an integrated PCB are described. An apparatus may include a silicon plate, one or more electrical and thermal connections, and a heat-generating device. The silicon plate may include a first side and a second side opposite the first side, a plurality of edges between the first side and the second side, one or more internal coolant flow channels therein, one or more coolant inlet ports disposed on one or more of the edges and configured to allow a coolant to flow into the one or more internal coolant flow channels, and one or more coolant outlet ports disposed on one or more of the edges and configured to allow the coolant to flow out of the one or more internal coolant flow channels. The one or more electrical and thermal connections may be disposed on the first side of the silicon plate. The heat-generating device may be disposed on the one or more electrical and thermal connections.

Abstract: Various embodiments of an apparatus that simultaneously cools and thermally decouples adjacent electrically-driven devices in close proximity are provided. In one aspect, an apparatus comprises a first non-silicon heat sink and a first silicon-based heat sink disposed on the first non-silicon heat sink. The first silicon-based heat sink is configured to receive a first electrically-driven device on a first portion of the first silicon-based heat sink and to receive a second electrically-driven device on a second portion of the first silicon-based heat sink. The first silicon-based heat sink includes a first groove or a first opening between the first portion and the second portion such that a heat conduction path between the first electrically-driven device and the first non-silicon heat sink through the first silicon-based heat sink is shorter than a heat conduction path between the first electrically-driven device and the second electrically-driven device through the first silicon-based heat sink.

Abstract: A thermal energy transfer device attached to an object to dissipate thermal energy from the object is described. In one aspect, the device includes a non-metal base plate and first and second non-metal plate structures. The base plate includes at least one groove on one of its primary surfaces. An edge of the first plate structure is received in a first groove of the at least one groove of the base plate. An edge of the second plate structure is received in a second groove of the at least one groove of the base plate. At least the first groove or the second groove is a V-notch groove such that the edge of the first plate structure or the edge of the second plate structure that is received in the first groove or the second groove is interlockingly received in the V-notch groove.

Abstract: Embodiments of a silicon-based heat dissipation device and a chip module assembly are described. An apparatus may include a silicon-based heat dissipation device, an extended device coupled to the silicon-based heat-dissipation device and heat-generating devices mounted on the silicon-based heat dissipation device. The silicon-based heat dissipation device may include a base portion having a first primary side and a second primary side opposite the first primary side. The silicon-based heat dissipation device may also include a protrusion portion on the first primary side of the base portion and protruding therefrom. The protrusion portion may include multiple fins. The base portion may include a slit opening with a first heat-generating device of the heat-generating devices on a first side of the slit opening and a second heat-generating device of the heat-generating devices on a second side of the slit opening opposite the first side of the slit opening.

Abstract: Examples of combining multiple laser beams into a single laser beam by using a circular or spiral diffraction grating are described. The multiple laser beams can be combined coherently or incoherently depending on the geometrical layout of the laser beams.

Abstract: Examples of a thermal management unit and an electronic apparatus utilizing the thermal management unit are described. In one aspect, the thermal management unit includes a heat sink. The heat sink includes a base portion, a first protrusion structure and a second protrusion structure. The base portion has a first side and a second side opposite the first side. The first protrusion structure protrudes from the first side of the base portion, and includes multiple fins. The second protrusion structure protrudes from the second side of the base portion, and includes multiple ribs. The heat sink may be made of silicon.

Abstract: Embodiments of a silicon heat-dissipation package for compact electronic devices are described. In one aspect, a device includes first and second silicon cover plates. The first silicon cover plate has a first primary side and a second primary side opposite the first primary side thereof. The second silicon cover plate has a first primary side and a second primary side opposite the first primary side thereof. The first primary side of the second silicon cover plate includes an indentation configured to accommodate an electronic device therein. The first primary side of the second silicon cover plate is configured to mate with the second primary side of the first silicon cover plate when the first silicon cover plate and the second silicon cover plate are joined together with the electronic device sandwiched therebetween.

Abstract: Various embodiments of a thermal energy transfer apparatus that removes thermal energy from a light-emitting device are described. In one aspect, an apparatus comprises a non-metal base plate and a silicon-based cover element disposed on the base plate. The base plate is coated with a first electrically-conductive pattern that forms a first electrode. The base plate is further coated with a second electrically-conductive pattern that is electrically isolated from the first electrically-conductive pattern. The cover element holds the one or more light-emitting devices between the base plate and the cover element with at least a portion of a light-emitting surface of each of the one or more light-emitting devices exposed. The cover element is coated with a third electrically-conductive pattern that is in contact with the second electrically-conductive pattern to form a second electrode when the cover element is disposed on the base plate.

Abstract: Embodiments of an apparatus with a thermal management technique utilizing a silicon heat sink and/or a phase-change material, as well as an assembling method thereof, are described. In one aspect, the apparatus comprises a main unit, a phase-change material and an enclosure enclosing the main unit and the phase-change material. The main unit comprises a substrate and at least one heat-generating device disposed on the substrate. The phase-change material is in direct contact with each heat-generating device of the at least one heat-generating device to absorb and dissipate heat generated by the at least one heat-generating device.

Abstract: In one aspect, an apparatus comprises a substrate, a first electrically-driven device disposed on the substrate, a second electrically-driven device disposed on the substrate, and a composite heat sink device. The composite heat sink device comprises a first thermal conduction member, a second thermal conduction member, and a thermal insulation member. The first thermal conduction member is disposed on the first electrically-driven device such that at least a portion of the heat generated by the first electrically-driven device is transferred to the first thermal conduction member by conduction. The second thermal conduction member is disposed on the second electrically-driven device such that at least a portion of the heat generated by the second electrically-driven device is transferred to the second thermal conduction member by conduction. The thermal insulation member is disposed between and thermally decouples the first thermal conduction member and the second thermal conduction member from one another.

Abstract: In one aspect, an apparatus comprises a substrate, a first electrically-driven device disposed on the substrate, a second electrically-driven device disposed on the substrate, and a composite heat sink device. The composite heat sink device comprises a first thermal conduction member, a second thermal conduction member, and a thermal insulation member. The first thermal conduction member is disposed on the first electrically-driven device such that at least a portion of the heat generated by the first electrically-driven device is transferred to the first thermal conduction member by conduction. The second thermal conduction member is disposed on the second electrically-driven device such that at least a portion of the heat generated by the second electrically-driven device is transferred to the second thermal conduction member by conduction. The thermal insulation member is disposed between and thermally decouples the first thermal conduction member and the second thermal conduction member from one another.

Abstract: A thermal energy storage apparatus that absorbs thermal energy from a heat-generating device is described. In one aspect, the thermal energy storage apparatus comprises a non-metal container and a phase-change material. The non-metal container is configured to receive the heat-generating device thereon. The phase-change material is contained in the non-metal container and configured to absorb at least a portion of heat from the heat-generating device through the non-metal container.