US20130112386A1 - Heat dissipating device and manufacture method thereof - Google Patents

Heat dissipating device and manufacture method thereof Download PDF

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Publication number
US20130112386A1
US20130112386A1 US13/334,839 US201113334839A US2013112386A1 US 20130112386 A1 US20130112386 A1 US 20130112386A1 US 201113334839 A US201113334839 A US 201113334839A US 2013112386 A1 US2013112386 A1 US 2013112386A1
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US
United States
Prior art keywords
heat
heat dissipating
base
area
dissipation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/334,839
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English (en)
Inventor
Ming-Hsiung Lai
Yu-Hsiang Jiang
You-Chi Chen
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MOST ENERGY Corp
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MOST ENERGY Corp
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Publication date
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Assigned to MOST ENERGY CORPORATION reassignment MOST ENERGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, YOU-CHI, Jiang, Yu-Hsiang, LAI, MING-HSIUNG
Publication of US20130112386A1 publication Critical patent/US20130112386A1/en
Abandoned legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4814—Conductive parts
    • H01L21/4871—Bases, plates or heatsinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367—Cooling facilitated by shape of device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
    • H01L23/3737—Organic materials with or without a thermoconductive filler
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367—Cooling facilitated by shape of device
    • H01L23/3677—Wire-like or pin-like cooling fins or heat sinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making

Definitions

  • the present invention relates to a heat dissipating device and a manufacturing method thereof.
  • the electronic components in the electronic apparatus which operates in high speed, usually generate a lot of heat.
  • the high-temperature operation environment can suffer the characteristics of the electronic components, and moreover, the extremely high temperature may cause the permanent damage of the electronic components. Accordingly, the proper heat dissipating device has become an important and indispensable component in the electronic apparatus.
  • a conventional heat dissipating device 1 A includes a heat sink 11 and a fan 12 .
  • the heat sink 11 has a base 111 and a plurality of fins 112 .
  • the base 111 of the heat sink 11 is attached to the component to be cooled down, and the fan 12 is locked on the fins 112 of the heat sink 11 .
  • the fan 12 blows the fins 112 to dissipate the generated heat.
  • the conventional heat dissipating device 1 A since the hub of the fan 12 can not generate the airflow, the central area of the heat sink 11 has poorer heat-dissipating efficiency than the periphery area thereof. In other words, the conventional heat-dissipating device 1 A can not provide a uniformly heat-dissipating effect. Besides, the dimension of the conventional heat dissipating device 1 A is large, so it can not satisfy the requirement of more compact and smaller electronic products.
  • another conventional heat dissipating device 1 B includes a plurality of graphite particles 13 and a plurality of aluminum particles 14 , which are mixed within an adhesive 15 and then shaped by thermal roller.
  • the graphite particles 13 can provide good heat-dissipating ability on the X-Y plane, but it has poor heat transmission along the Z axis (vertical direction). Accordingly, the portions far away from the heat source in the vertical direction, the heat-dissipating function becomes very poor.
  • the aluminum particles 14 are added into the heat dissipating device 1 B, and the graphite particles 13 and the aluminum particles 14 are simply mixed in the heat dissipating device 1 B only. Therefore, the heat dissipating device 1 B still can not dissipate the heat uniformly and thus can not improve the heat dissipation efficiently.
  • an object of the present invention is to provide a heat dissipating device and a manufacturing method thereof that can uniformly dissipate the heat so as to improve the heat-dissipating effect and can remain the simple and fast manufacturing processes.
  • a heat dissipating device includes a base and a plurality of heat dissipating layers.
  • the base has a first surface and a second surface which are opposite to each other.
  • the heat dissipating layers are formed on the first surface of the base in sequence.
  • Each heat dissipating layer has at least one heat dissipating structure, which includes a heat storage/dissipation area and a heat conductive area.
  • the heat storage/dissipation area surrounds the heat conductive area, and a gap is configured between the heat storage/dissipation area and the heat conductive area.
  • the heat storage/dissipation areas of two adjacent heat dissipating layers contact with each other, while the heat conductive areas of two adjacent heat dissipating layers contact with each other.
  • the base is made of a metal comprising copper, aluminum, gold, silver, tungsten, or their alloys.
  • the thickness of the base is between 100 ⁇ m and 1000 ⁇ m.
  • the heat storage-dissipation area comprises a plurality of non-metal particles.
  • the non-metal particles are graphite particles, the purity of the graphite particle is between 97% and 99.9%, and the diameter of the graphite particle is between 500 ⁇ m and 3000 ⁇ m.
  • the heat conductive area comprises a plurality of metal particles, which comprises copper, aluminum, gold, silver, tungsten, or their alloys.
  • the ratio of the size of the heat conductive area to the size of the heat storage/dissipation area is between 1:1.25 and 1:2.5.
  • the heat dissipating device further includes an adhesive layer and a protection layer.
  • the adhesive layer is formed on the second surface of the base, and the protection layer is formed on the heat dissipating layers.
  • the ratio of the gap to the circumference of the heat storage/dissipation area is between 0.01:1 and 0.15:1.
  • the present invention also discloses a manufacturing method of a heat dissipating device.
  • the manufacturing method includes the following steps of: providing a base, and printing a plurality of heat dissipating layers on a first surface of the base in sequence.
  • Each of the heat dissipating layers has at least one heat dissipating structure.
  • the heat dissipating structure includes a heat storage/dissipation area and a heat conductive area, and the heat storage/dissipation area surrounds the heat conductive area.
  • a gap is configured between the heat storage/dissipation area and the heat conductive area.
  • the heat storage/dissipation areas of adjacent two of the heat dissipating layers contact with each other, while the heat conductive areas of adjacent two of the heat dissipating layers contact with each other.
  • the heat dissipating layers are formed on the first surface of the base by screen printing using multiple printing method or overprinting method.
  • the manufacturing method further includes the following steps of: forming an adhesive layer on the second surface of the base; and forming a protection layer on the heat dissipating layers.
  • the heat dissipating device of the present invention includes a plurality of heat dissipating layers formed on the base in sequence by printing.
  • the heat storage/dissipation area surrounds the heat conductive area, and a gap is configured between the heat storage/dissipation area and the heat conductive area.
  • the heat storage/dissipation areas of two adjacent heat dissipating layers contact with each other, while the heat conductive areas of two adjacent heat dissipating layers contact with each other.
  • the vertical thermal transmission can be improved, so that the heat generated from the heat source can be conducted to the heat storage/dissipation areas of every heat dissipating layer. Therefore, the heat can be uniformly dissipated so as to improve the heat-dissipating effect and still remain the simple and fast manufacturing processes.
  • FIG. 1A is a schematic diagram showing a conventional heat dissipating device
  • FIG. 1B is a schematic diagram showing another conventional heat dissipating device
  • FIGS. 2A and 2B are schematic diagram showing a heat dissipating device according to a preferred embodiment of the present invention.
  • FIG. 3 is a schematic diagram showing a heat dissipating structure of the heat dissipating device according to the preferred embodiment of the present invention.
  • FIGS. 4A to 4F are top views of different aspects of the heat storage/dissipation area and heat conductive area according to the preferred embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing another heat dissipating device according to the preferred embodiment of the present invention.
  • FIG. 6 is a flow chart of a manufacturing method of a heat dissipating device according to the preferred embodiment of the present invention.
  • FIGS. 2A and 2B are schematic diagram showing a heat dissipating device 2 according to a preferred embodiment of the present invention.
  • the heat dissipating device 2 includes a base 21 and four heat dissipating layers 22 .
  • the number of the heat dissipating layers 22 can be four or other numbers.
  • the heat dissipating device 2 can be applied to power device, display card, motherboard, lamp, other electronic devices or other electronic products, for dissipating the generated heat.
  • the base 21 has a first surface 211 and a second surface 212 , which are opposite to each other.
  • the base 21 can be made of a metal including copper, aluminum, gold, silver, tungsten, or their alloys.
  • the area and thickness of the base 21 can be adjustable according to the size and generated heat of the heat source.
  • the thickness of the base 21 is between 100 ⁇ m and 1000 ⁇ m.
  • the heat dissipating layers 22 are formed on the first surface 211 of the base 21 in sequence. In other words, the heat dissipating layers 22 are stacked on the first surface 211 .
  • Each heat dissipating layer 22 includes a heat dissipating structure 221 .
  • the heat dissipating structure 221 includes a heat storage/dissipation area A 1 and a heat conductive area A 2 .
  • the heat storage/dissipation area A 1 surrounds the heat conductive area A 2 , and a gap G is configured between the heat storage/dissipation area A 1 and the heat conductive area A 2 .
  • the heat storage/dissipation areas A 1 of two adjacent heat dissipating layers 22 are vertically contact with each other, while the heat conductive areas A 2 of two adjacent heat dissipating layers are vertically contact with each other.
  • the heat storage/dissipation areas A 1 or the heat conductive areas A 2 can contact partially or entirely.
  • the heat dissipating device 2 includes four heat dissipating layers 22 , and each heat dissipating layer 22 includes a heat dissipating structure 221 .
  • the heat dissipating device 2 may include other numbers of heat dissipating layers 22 , and each heat dissipating layer 22 may include one or more heat dissipating structures 221 .
  • the heat dissipating device 2 includes 3-15 heat dissipating layers 22 , and each heat dissipating layer 22 includes 50-750 heat dissipating structures 221 per square inch.
  • the heat dissipating structure 221 will be further described hereinafter with reference to FIG. 3 .
  • the heat storage/dissipation area A 1 of the heat dissipating structure 221 includes a plurality of non-metal particles P 1 and a polymer gel.
  • the non-metal particles P 1 can be graphite particles, and the polymer gel can be a light-cured gel or a thermosetting gel.
  • the polymer gel is PMMA (polymethly methacrylate).
  • the purity of the graphite particle is between 97% and 99.9%, and the diameter of the graphite particle is between 500 ⁇ m and 3000 ⁇ m. Since the graphite has excellent thermal conductivity, especially on the plane composed of X-axis and Y-axis, the heat storage/dissipation area A 1 containing the graphite particles can provide high-performance thermal transmission along the horizontal direction of the heat dissipating layer 22 .
  • the heat conductive area A 2 of the heat dissipating structure 221 includes a plurality of metal particles P 2 and a polymer gel.
  • the metal particles P 2 can include copper, aluminum, gold, silver, tungsten, or their alloys, and the polymer gel can be a light-cured gel or a thermosetting gel.
  • the polymer gel is PMMA (polymethly methacrylate).
  • the heat conductive area A 2 containing the metal particles P 2 can provide high-performance thermal transmission along the vertical direction of the heat dissipating layer 22 .
  • the ratio of the size of the heat conductive area A 2 to the size of the heat storage/dissipation area A 1 is between 1:1.25 and 1:2.5.
  • the weight percentages of the non-metal particles P 1 and the metal particles P 2 can be modified according to the actual requirement.
  • the gap G of the heat dissipating structure 221 is configured as the buffer for the thermal expansion of the heat storage/dissipation area A 1 and the heat conductive area A 2 , so that the heat storage/dissipation area A 1 and the heat conductive area A 2 can closely attach to each other as the heat dissipating structure 221 is heated.
  • This configuration can enhance the thermal conduction and heat dissipation of the heat dissipating structure 221 .
  • the ratio of the gap G to the circumference of the heat storage/dissipation area A 1 is between 0.01:1 and 0.15:1.
  • the size of the gap G is preferably modified with respect to different materials.
  • the shapes of the heat storage/dissipation area A 1 and the heat conductive area A 2 can have different aspects, which will be described hereinafter with reference to FIGS. 4A to 4F .
  • the top view of the heat storage/dissipation area A 1 shows a quadrangle with equivalent sides, and the top view of the heat conductive area A 2 shows a circle.
  • the top view of the heat storage/dissipation area A 1 shows a quadrangle with non-equivalent sides, and the top view of the heat conductive area A 2 shows an ellipse.
  • the top view of the heat storage/dissipation area A 1 shows a quadrangle with non-equivalent sides
  • the top view of the heat conductive area A 2 shows a triangle.
  • FIG. 4A the top view of the heat storage/dissipation area A 1 shows a quadrangle with equivalent sides, and the top view of the heat conductive area A 2 shows a circle.
  • the top view of the heat storage/dissipation area A 1 shows a quadrangle with non-equivalent sides
  • the top view of the heat conductive area A 2 shows a triangle.
  • the top views of the heat storage/dissipation area A 1 and the heat conductive area A 2 show circles.
  • the top view of the heat storage/dissipation area A 1 shows a hexagon with equivalent sides
  • the top view of the heat conductive area A 2 shows a circle.
  • the top views of the heat storage/dissipation area A 1 and the heat conductive area show hexagons with equivalent sides.
  • the above-mentioned aspects of the heat storage/dissipation area A 1 and the heat conductive area A 2 are for illustrations only and are not to limit the scope of the present invention.
  • the shape (from the top view) of the heat storage/dissipation area A 1 and the heat conductive area A 2 can be circle, ellipse, polygon with equivalent sides, or polygon with non-equivalent sides.
  • the shapes of the heat storage/dissipation area A 1 and the heat conductive area A 2 can be the same or different.
  • the polygon includes, for example, 3 to 10 sides.
  • FIG. 5 is a schematic diagram showing another heat dissipating device 3 according to the preferred embodiment of the present invention.
  • the difference between the heat dissipating devices 2 and 3 is in that the heat dissipating device 3 further includes an adhesive layer 33 and a protection layer 34 .
  • the heat dissipating layer 32 of the heat dissipating device 3 includes six heat dissipating structures 321 .
  • the adhesive layer 33 is formed on the second surface 312 of the base 31 .
  • the adhesive layer 33 is a thermal-conductive pressure-sensitive adhesive, which is covered by a separating paper.
  • the heat dissipating layers 32 are formed on the first surface 311 of the base 31 in sequence, and the protection layer 34 is formed on the heat dissipating layers 32 for improving the structural strength of the heat dissipating device 3 .
  • the material of the protection layer 34 may be selected from the same material of the heat storage/dissipation area A 1 and the heat conductive area A 2 of the heat dissipating structure 321 .
  • the manufacturing method of the above-mentioned heat dissipating device 2 according to the preferred embodiment of the present invention will be described hereinafter with reference to the flow chart in FIG. 6 in view of FIG. 2A .
  • the manufacturing method includes the following steps S 01 to S 02 .
  • the step S 01 is to provide a base 21 .
  • the base 21 is made of a metal including copper, aluminum, gold, silver, tungsten, or their alloys.
  • the area and thickness of the base 21 can be adjustable according to the size and generated heat of the heat source.
  • the thickness of the base 21 is between 100 ⁇ m and 1000 ⁇ m.
  • the step S 02 is to print a plurality of heat dissipating layers 22 on a first surface 211 of the base 21 in sequence.
  • each of the heat dissipating layers 22 has a heat dissipating structure 221 , which includes a heat storage/dissipation area A 1 and a heat conductive area A 2 .
  • the heat storage/dissipation area A 1 surrounds the heat conductive area A 2 , and a gap is configured between the heat storage/dissipation area A 1 and the heat conductive area A 2 .
  • the heat storage/dissipation areas A 1 of two adjacent heat dissipating layers 22 contact with each other, while the heat conductive areas A 2 of two adjacent heat dissipating layers 22 contact with each other.
  • the heat dissipating layers 22 are formed on the first surface 211 of the base 21 by screen printing using multiple printing method or overprinting method.
  • the number of the heat dissipating layers 22 is from 3 to 15.
  • the manufacturing method of FIG. 6 can also be applied to manufacture the above-mentioned heat dissipating device 3 (see FIG. 5 ).
  • the manufacturing method further includes the following steps of forming an adhesive layer 33 on the second surface 312 of the base 31 , and forming a protection layer 34 on the heat dissipating layers 32 .
  • the adhesive layer 33 is, for example, a thermal-conductive pressure-sensitive adhesive, for closely attaching to the object (e.g. power device, display card, motherboard, lamp, other electronic devices or other electronic products) to be cooled down.
  • the adhesive layer 33 is covered by a separating paper.
  • the protection layer 34 is configured to improve the structural strength of the heat dissipating device 3 .
  • the material of the protection layer 34 may be selected from the same material of the heat storage/dissipation area A 1 and the heat conductive area A 2 of the heat dissipating structure 321 .
  • the heat storage/dissipation area A 1 which has larger surface contacting the base 21 , is used for storing heat and dissipating heat
  • the heat conductive area A 2 which is made in lamination, is perpendicular to the base 21 , so that it can transmit redundant heat of the base 21 in the Z-axis to other heat storage/dissipation area A 1 further away from the base 21 .
  • the heat storage/dissipation area A 1 with excellent heat dissipating ability on the plane of X-axis and Y-axis can temporarily store the absorbed heat in the lattice structure itself, and then dissipate the redundant heat gradually depending on the physical property of the non-metal particles P 1 .
  • the heat dissipating device of the present invention includes a plurality of heat dissipating layers formed on the base in sequence by printing.
  • the heat storage/dissipation area surrounds the heat conductive area, and a gap is configured between the heat storage/dissipation area and the heat conductive area.
  • the heat storage/dissipation areas of two adjacent heat dissipating layers contact with each other, while the heat conductive areas of two adjacent heat dissipating layers contact with each other.
  • the vertical thermal transmission (Z-axis) can be improved, so that the heat generated from the heat source can be conducted to the heat storage/dissipation areas of every heat dissipating layer. Therefore, the heat can be uniformly dissipated so as to improve the heat-dissipating effect and still remain the simple and fast manufacturing processes.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US13/334,839 2011-11-04 2011-12-22 Heat dissipating device and manufacture method thereof Abandoned US20130112386A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW100140441A TW201319507A (zh) 2011-11-04 2011-11-04 散熱裝置及其製造方法
TW100140441 2011-11-04

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US (1) US20130112386A1 (de)
EP (1) EP2590210A3 (de)
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US10859325B2 (en) 2016-06-27 2020-12-08 Neo Corporation Heat exchanger
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WO2019025201A1 (en) * 2017-08-01 2019-02-07 Philips Lighting Holding B.V. LIGHTING DEVICE AND METHOD FOR PRODUCING LIGHTING DEVICE

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US10248171B2 (en) 2013-06-07 2019-04-02 Apple Inc. Desktop electronic device
US11899511B2 (en) 2013-06-07 2024-02-13 Apple Inc. Computer housing
US20140361893A1 (en) * 2013-06-07 2014-12-11 Apple Inc. Computer input/output interface
US9913400B2 (en) 2013-06-07 2018-03-06 Apple Inc. Computer thermal system
US9946315B2 (en) 2013-06-07 2018-04-17 Apple Inc. Desktop consumer electronic device
US9964999B2 (en) 2013-06-07 2018-05-08 Apple Inc. Computer internal architecture
US9974206B2 (en) 2013-06-07 2018-05-15 Apple Inc. Computer internal architecture
US10073499B2 (en) 2013-06-07 2018-09-11 Apple Inc. Computer internal architecture
US9423840B2 (en) 2013-06-07 2016-08-23 Apple Inc. Computer housing
US9207728B2 (en) * 2013-06-07 2015-12-08 Apple Inc. Computer input/output interface
US10725507B2 (en) 2013-06-07 2020-07-28 Apple Inc. Desktop electronic device
US10539984B2 (en) 2013-06-07 2020-01-21 Apple Inc. Computer housing
US10845852B2 (en) 2013-06-07 2020-11-24 Apple Inc. Desktop electronic device
US10254805B2 (en) 2013-06-07 2019-04-09 Apple Inc. Desktop electronic device
US11256306B2 (en) 2013-06-07 2022-02-22 Apple Inc. Computer housing
US11256307B2 (en) 2013-06-07 2022-02-22 Apple Inc. Desktop electronic device
US11650634B2 (en) 2013-06-07 2023-05-16 Apple Inc. Desktop electronic device
US11899509B2 (en) 2013-06-07 2024-02-13 Apple Inc. Computer housing
US10859325B2 (en) 2016-06-27 2020-12-08 Neo Corporation Heat exchanger

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EP2590210A2 (de) 2013-05-08
TW201319507A (zh) 2013-05-16
EP2590210A3 (de) 2014-07-09

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