摘要:
An article and method of forming the article is disclosed. The article includes a heat source, a heat-sink, and a thermal interface element having a plurality of freestanding nanosprings, a top layer, and a bottom layer. The nanosprings, top layer, and the bottom layers of the article include at least one inorganic material. The article can be prepared using a number of methods including the methods such as GLAD and electrochemical deposition.
摘要:
An electrical device is described herein. The electrical device includes a housing that includes an inner surface that defines a cavity, a heat sink that is coupled to the housing and oriented along a first plane, and at least one electrical component positioned within the housing cavity and oriented along a second plane that is different than the first plane. A heat exchange assembly is coupled to the electrical component and the heat sink for adjusting a temperature of the electrical component. The heat exchange assembly includes an evaporator section, a condenser section, and a transport section extending between the evaporator section and the condenser section for channeling a working fluid between the evaporator section and the condenser section. The heat exchange assembly is configured to bend along at least one bending axis oriented with respect to the transport section.
摘要:
A method for fabricating a substrate package for a high density interconnect multichip module stack comprises: providing a substrate having holes extending therethrough and having a bottom surface with metallization situated thereon; providing a metal sheet having grooves extending therethrough; attaching the metal sheet to the bottom surface of the substrate; attaching metal plugs through the holes to the metal sheet; and removing portions of the substrate to expose the metal plugs and separate the metal sheet into a plurality of segments defined by the grooves.
摘要:
A heat exchange assembly for use in cooling an electrical component is described herein. The heat assembly includes a casing that includes an evaporator section, a condenser section, and a transport section extending between the evaporator section and the condenser section along a longitudinal axis. The casing is configured to bend along a bending axis oriented with respect to the transport section. The casing also includes at least one sidewall that includes at least one fluid chamber extending between the evaporator section and the condenser section to channel a working fluid between the evaporator section and the condenser section. A plurality of fluid channels are defined within the inner surface to channel liquid fluid from the condenser section to the evaporator section. At least one vapor channel is defined within the inner surface to channel gaseous fluid from the evaporator section to the condenser section.
摘要:
A light emitting apparatus (8) includes one or more light emitting chips (10) that are disposed on a printed circuit board (12) and emit light predominantly in a wavelength range between about 400 nanometers and about 470 nanometers. The printed circuit board includes: (i) an electrically insulating board (14); (ii) electrically conductive printed circuitry (20); and (iii) an electrically insulating solder mask (22) having vias (24) through which the one or more light emitting chips electrically contact the printed circuitry. The solder mask (22) has a reflectance of greater than 60% at least between about 400 nanometers and about 470 nanometers.
摘要:
In a lighting package, a printed circuit board supports at least one light emitting die. A light transmissive cover is disposed over the at least one light emitting die. A phosphor is disposed on or inside of the light transmissive dome-shaped cover. The phosphor outputs converted light responsive to irradiation by the at least one light emitting die. An encapsulant substantially fills an interior volume defined by the light-transmissive cover and the printed circuit board.
摘要:
A solid state thermal transfer device includes first and second electrically conductive substrates that are positioned opposite from one another. The solid state thermal transfer device also includes a sealing layer disposed between the first and second electrically conductive substrates and a plurality of hollow structures having a conductive material, wherein the plurality of hollow structures is contained by the sealing layer between the first and second electrically conductive substrates.
摘要:
A method of manufacturing a thermal transfer device including providing first and second thermally conductive substrates that are substantially atomically flat, providing a patterned electrical barrier having a plurality of closed shapes on the first thermally conductive substrate and providing a nanotube catalyst material on the first thermally conductive substrate in a nanotube growth area oriented within each of the plurality of closed shapes of the patterned electrical barrier. The method also includes orienting the second thermally conductive substrate opposite the first thermally conductive substrate such that the patterned electrical barrier is disposed between the first and second thermally conductive substrates and providing a precursor gas proximate the nanotube catalyst material to facilitate growth of nanotubes in the nanotube growth areas from the first thermally conductive substrate toward, and limited by, the second thermally conductive substrate. In this thermal transfer device, introduction of current flow between the first and second thermally conductive substrates enables heat transfer between the first and second thermally conductive substrates via a flow of electrons between the first and second thermally conductive substrates.
摘要:
A sensor package and method are described. The sensor package includes an enclosure, a diaphragm coupled to the enclosure. The diaphragm is configured to receive vibrations from an ambient environment. Further, the sensor package includes a pressure sensing element disposed inside the enclosure, and a pressure transfer medium disposed inside the enclosure and proximate the pressure sensing element, where the pressure transfer medium includes a fluid, and a plurality of filler particles suspended in the fluid. The filler particles serve to reduce a coefficient of thermal expansion of the pressure transfer medium.
摘要:
An apparatus is provided including at least one electronic component. The apparatus also includes an enclosure enclosing the at least one electronic component. The enclosure includes at least one wall defined by a membrane. The apparatus further includes a piezoelectric actuator that is fixed at a first end and rigidly attached to the membrane at a second end. Application of alternating current to the piezoelectric actuator generates a pulsating mechanical deformation of the membrane.