WO2017156827A1 - 导热装置与蒸镀坩埚 - Google Patents

导热装置与蒸镀坩埚 Download PDF

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WO2017156827A1
WO2017156827A1 PCT/CN2016/080104 CN2016080104W WO2017156827A1 WO 2017156827 A1 WO2017156827 A1 WO 2017156827A1 CN 2016080104 W CN2016080104 W CN 2016080104W WO 2017156827 A1 WO2017156827 A1 WO 2017156827A1
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heat conducting
heat
crucible
tube
conducting tube
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PCT/CN2016/080104
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English (en)
French (fr)
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刘扬
刘亚伟
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深圳市华星光电技术有限公司
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Priority to US15/108,319 priority Critical patent/US20180148827A1/en
Publication of WO2017156827A1 publication Critical patent/WO2017156827A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/12—Organic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • C23C14/243—Crucibles for source material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • C23C14/26—Vacuum evaporation by resistance or inductive heating of the source

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a heat conducting device and an evaporating crucible.
  • OLED Organic Light-Emitting Diode
  • organic electroluminescent display also known as an organic electroluminescent display
  • the working temperature has wide adaptability, light volume, fast response, easy to realize color display and large screen display, easy to realize integration with integrated circuit driver, easy to realize flexible display, and the like, and thus has broad application prospects.
  • the OLED manufacturing technology for mass production is to prepare a film of OLED material by vacuum evaporation.
  • the OLED material In vacuum evaporation, the OLED material is placed in a crucible, and the material is vaporized by heating, and vaporized molecules are ejected from the spout of the crucible and deposited on the substrate to form a solid film.
  • the OLED materials are generally classified into a sublimation type and a molten type.
  • the sublimation type material is directly sublimated from a solid powder state to a gaseous state after being heated, and the molten type material is changed from a solid powder state to a molten state after being heated, and then evaporated to a gaseous state. Whether it is sublimation or melting, the thermal conductivity of OLED organic materials is usually very poor.
  • the temperature field unevenness is likely to cause the situation as shown in FIG. 1 : the material 200 near the crucible wall 100 is at a high temperature, and the sublimation is fast, and the temperature of the material 200 away from the crucible wall 100 is low, and the sublimation is slow. After sublimation for a certain time, a gap 300 is formed between the material 200 and the crucible wall 100. After the void 300 is formed, the material 200 needs to be heated to a higher temperature to reach the sublimation rate, which is disadvantageous for the performance of the OLED.
  • the temperature field is uneven, which tends to cause a situation as shown in Fig. 2: the material 200 near the crucible wall 100 first reaches the temperature required for melting, becomes molten, and the material 200 away from the crucible wall 100 is still in a solid powder state.
  • the molten material 200 has a certain fluidity, and the powdered material 200 is wrapped therein, so that the material 200 as a whole is in a "semi-molten state", and the semi-molten material 200 is evaporated onto the substrate to form a uniform film. Poor sex, not good for OLED performance.
  • Another object of the present invention is to provide an evaporating crucible which can uniformly transfer heat on the crucible wall to the inside and the center of the crucible, thereby improving the uniformity of heat of the crucible inner material.
  • the present invention provides a heat conducting device comprising a heat conducting tube and a plurality of heat conducting sheets mounted on the heat conducting tube, wherein the side walls of the heat conducting tube and the heat conducting sheet are provided with a plurality of through holes.
  • a plurality of strip-shaped grooves between the plurality of through holes are disposed on the side wall of the heat-conducting tube, and the plurality of strip-shaped grooves extend in a direction parallel to the extending direction of the heat-conducting tube, and the number The heat conducting sheets are respectively engaged in the plurality of strip grooves.
  • the cross section of the heat conducting cylinder is a circular or axially symmetrical convex polygon.
  • the heat conducting tube and the heat conductive sheet are made of metal.
  • the present invention also provides a heat conducting device comprising a heat conducting tube having a cross section having a star shape having three or more angles, each corner of the star being surrounded by two heat conducting plates, so that The heat conducting tube is composed of more than 6 heat conducting plates connected to each other, wherein each heat conducting plate is provided with a plurality of through holes.
  • the present invention also provides an evaporation crucible comprising a crucible body, a heat conducting device disposed inside the crucible body, and a flip cover disposed above the crucible body, the heat conducting device including a heat conducting tube and being mounted on the heat conducting tube
  • the heat conducting device including a heat conducting tube and being mounted on the heat conducting tube
  • the plurality of heat conducting sheets, wherein the side wall of the heat conducting tube and the heat conducting sheet are provided with a plurality of through holes.
  • a plurality of strip-shaped grooves between the plurality of through holes are disposed on the side wall of the heat-conducting tube, and the plurality of strip-shaped grooves extend in a direction parallel to the extending direction of the heat-conducting tube, and the number The heat conducting sheets are respectively engaged in the plurality of strip grooves.
  • the cross section of the heat conducting cylinder is a circular or axially symmetrical convex polygon.
  • the height of the heat conducting device is smaller than the height of the inner space of the crucible body, and the radial dimension of the heat conducting device is smaller than the radial dimension of the inner space of the crucible body.
  • the present invention also provides an evaporation crucible comprising a crucible body, a heat conducting device disposed inside the crucible body, and a crucible cover disposed above the crucible body, the heat conducting device comprising a heat conducting tube, the transverse direction of the heat conducting tube
  • the cross section is a star having three or more angles, and each corner of the star is surrounded by two heat conducting plates, so that the heat conducting tube is composed of more than 6 heat conducting plates connected to each other, wherein each heat conducting plate There are several through holes.
  • the present invention provides a heat conducting device and an evaporation crucible, the heat conducting device comprising a heat conducting tube and a plurality of heat conducting sheets mounted on the heat conducting tube to be radiated, or
  • the radial heat-conducting tube is arranged in a radial shape, and the heat-dissipating device is placed in the vapor-deposited crucible, and the heat transfer on the crucible wall can be uniformly transmitted to the inside and the center of the crucible through the heat transfer path of the heat-conducting device, thereby improving
  • the uniformity of the internal material of the crucible makes the evaporation state of the material stable and improves the evaporation effect; and the heat conducting device is easy to process, has low cost, good heat conduction effect, and convenient installation and disassembly.
  • FIG. 1 is a schematic view showing a gap formed by a sublimation type material in a conventional vapor deposition crucible due to uneven heating;
  • FIG. 2 is a schematic view showing a semi-molten state of a molten material in a conventional vapor deposition crucible due to uneven heating;
  • FIG. 3 is a schematic structural view of a first embodiment of a heat conducting device of the present invention.
  • FIG. 4 is a schematic structural view of a second embodiment of a heat conducting device of the present invention.
  • Figure 5 is a schematic cross-sectional view showing a third embodiment of the heat conducting device of the present invention and a schematic view of a heat conducting plate constituting the heat conducting tube;
  • Figure 6 is a schematic cross-sectional view showing a fourth embodiment of the heat conducting device of the present invention and a schematic view of a heat conducting plate constituting the heat conducting tube;
  • Fig. 7 is a schematic view showing the structure of an evaporating crucible of the present invention.
  • the sidewall of the heat conducting tube 10 is provided with a plurality of strip-shaped grooves 15 between the plurality of through holes 30, and the extending directions of the plurality of strip-shaped grooves 15 are parallel to the heat-conducting tube In the extending direction of the 10, the plurality of heat conducting sheets 20 are respectively engaged in the plurality of strip-shaped grooves 15 to be mounted on the heat conducting tube 10, and the mounting manner is convenient to disassemble.
  • the first heat conducting device has a plurality of heat conducting sheets 20 mounted around the heat conducting tube 10, so that the heat conducting device is radiated, thereby improving the uniformity of heat conduction.
  • the shape of the through hole 30 may be a circle, a rectangle, a triangle, a convex polygon, or a star shape.
  • the plurality of through holes 30 on the side wall of the heat conducting tube 10 are uniformly distributed and have the same shape and size, and the plurality of through holes 30 on the heat conducting sheet 20 are uniformly distributed and have the same shape and size.
  • the heat conducting tube 10 and the heat conductive sheet 20 are generally made of a metal such as a titanium alloy, an aluminum alloy, a stainless steel or the like.
  • the heat transfer path between the heat conducting tube 10 and the heat conducting sheet 20 can uniformly transfer the heat on the crucible wall to the inside and the center of the crucible, which is advantageous for improving the heat of the crucible inner material.
  • the uniformity makes the evaporation state of the material stable and improves the evaporation effect; and the heat conducting device is easy to process, has low cost, good heat conduction effect, and is convenient to install and disassemble.
  • the cross section of the heat conducting cylinder 10 is a star having five corners; in the second heat conducting device, since the heat conducting cylinder 10 itself is radiated, it is not required to be around the heat conducting cylinder 10. Good thermal conductivity uniformity can be achieved by installing a thermal pad.
  • the plurality of heat conducting plates 11 constituting the heat conducting tube 10 may be integrally formed, or may be fixedly connected by welding or the like, and may even be movably connected in a detachable manner. Start.
  • the cross section of the heat conducting tube 10 is an axially symmetrical pattern, thereby improving the uniformity of heat conduction.
  • the material of the heat conducting tube 10 is generally a metal such as a titanium alloy, an aluminum alloy, a stainless steel or the like.
  • the present invention further provides an evaporation crucible comprising a crucible body 50 , a heat conducting device 60 disposed inside the crucible body 50 , and a crucible body 50 disposed on the crucible body 50 .
  • the heat conducting device 60 may be a first heat conducting device as shown in FIG. 3-4, or a second heat conducting device as shown in FIGS. 5-6.
  • the height of the heat conducting device 60 is smaller than the height of the inner space of the crucible body 50, and the radial dimension of the heat conducting device 60 is smaller than the radial dimension of the inner space of the crucible body 50.
  • the present invention provides a heat conducting device and an evaporating crucible.
  • the heat conducting device includes a heat conducting tube and a plurality of heat conducting sheets mounted on the heat conducting tube to be radiated, or includes a radial heat conduction.
  • the tube is radiated, and the heat transfer device is placed in the vapor deposition crucible, and the heat transfer on the crucible wall can be uniformly transmitted to the inside and the center of the crucible through the heat transfer path of the heat transfer device, thereby improving the uniform heating of the crucible inner material.
  • the material makes the vapor deposition state of the material stable and improves the evaporation effect; and the heat conducting device is easy to process, has low cost, good heat conduction effect, and is convenient to install and disassemble.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

一种导热装置（60）与蒸镀坩埚，导热装置（60）包括一导热筒（10）与安装于导热筒（10）上的数个导热片（20）而呈辐射状，或包括一辐射状的导热筒（10）而呈辐射状，通过在蒸镀坩埚中放入导热装置（60），经由导热装置（60）的传热路径，可以使坩埚壁上的热量均匀的传递至坩埚的内部及中心。

Description

导热装置与蒸镀坩埚 技术领域
本发明涉及显示技术领域，尤其涉及一种导热装置与蒸镀坩埚。
背景技术
OLED(Organic Light-Emitting Diode，有机发光二极管)显示器，也称为有机电致发光显示器，是一种新兴的平板显示装置，由于其具有制备工艺简单、成本低、功耗低、发光亮度高、工作温度适应范围广、体积轻薄、响应速度快，而且易于实现彩色显示和大屏幕显示、易于实现和集成电路驱动器相匹配、易于实现柔性显示等优点，因而具有广阔的应用前景。目前实现量产的OLED制造技术均是采用真空蒸镀的方法制备OLED材料薄膜。
真空蒸镀时，将OLED材料放置于坩埚中，通过加热将材料汽化，汽化分子从坩埚盖的喷口飞出沉积到基板上形成固态薄膜。OLED材料一般分为升华型和熔融型，升华型材料受热后直接从固体粉末态升华变为气态，熔融型材料受热后先从固体粉末态变为熔融态，再蒸发变为气态。不论是升华型还是熔融型，OLED有机材料的导热性通常都很差，再加上处于真空状态，没有气体分子作为导热介质，热量由坩埚壁传输到坩埚中部通常都很慢，这就在坩埚中造成较大的温度差，即坩埚内部温度场不均匀。
对于升华型材料，温度场不均匀容易造成如图1所示的情形：接近坩埚壁100的材料200所处的温度高，升华快，远离坩埚壁100的材料200所处的温度低，升华慢，升华一定时间后材料200与坩埚壁100之间形成空隙300，空隙300形成后，材料200需要加热到更高的温度才可以达到升华的速率，这对OLED的性能是不利的。
对于熔融型材料，温度场不均匀容易造成如图2所示的情形：接近坩埚壁100的材料200先达到熔融所需温度，变为熔融态，远离坩埚壁100的材料200还处于固体粉末态，熔融态的材料200由于有一定的流动性，将粉末态的材料200包裹在其中，使得材料200整体处于“半熔融态”，半熔融态的材料200被蒸镀到基板上其成膜均匀性不好，对OLED性能不利。
发明内容
本发明的目的在于提供一种导热装置，放置于蒸镀坩埚内部使用，可以将坩埚壁上的热量均匀的传导至坩埚的内部及中心，使得坩埚内部的材料受热均匀。
本发明的目的还在于提供一种蒸镀坩埚，可以使坩埚壁上的热量均匀的传递至坩埚的内部及中心，提高坩埚内部材料受热的均匀性。
为实现上述目的，本发明提供一种导热装置，包括一导热筒与安装于该导热筒上的数个导热片，其中，所述导热筒的侧壁与导热片上均设有数个通孔。
所述导热筒的侧壁上设有位于数个通孔之间的数个条形凹槽，所述数个条形凹槽的延伸方向均平行于所述导热筒的延伸方向，所述数个导热片分别卡合于该数个条形凹槽中。
所述导热筒的横截面为圆形或轴向对称的凸多边形。
所述导热筒与导热片的材质为金属。
本发明还提供一种导热装置，包括一导热筒，所述导热筒的横截面为具有三个角以上的星形，该星形的每个角均由两个导热板围成，从而所述导热筒由6个以上相互连接的导热板组成，其中，每个导热板上均设有数个通孔。
本发明还提供一种蒸镀坩埚，包括坩埚本体、放置于坩埚本体内部的导热装置、及设于所述坩埚本体上方的坩埚盖，所述导热装置包括一导热筒与安装于该导热筒上的数个导热片，其中，所述导热筒的侧壁与导热片上均设有数个通孔。
所述导热筒的侧壁上设有位于数个通孔之间的数个条形凹槽，所述数个条形凹槽的延伸方向均平行于所述导热筒的延伸方向，所述数个导热片分别卡合于该数个条形凹槽中。
所述导热筒的横截面为圆形或轴向对称的凸多边形。
所述导热装置的高度小于所述坩埚本体的内部空间的高度，所述导热装置的径向尺寸小于所述坩埚本体的内部空间的径向尺寸。
本发明还提供一种蒸镀坩埚，包括坩埚本体、放置于坩埚本体内部的导热装置、及设于所述坩埚本体上方的坩埚盖，所述导热装置包括一导热筒，所述导热筒的横截面为具有三个角以上的星形，该星形的每个角均由两个导热板围成，从而所述导热筒由6个以上相互连接的导热板组成，其中，每个导热板上均设有数个通孔。
本发明的有益效果：本发明提供的一种导热装置与蒸镀坩埚，所述导热装置包括一导热筒与安装于该导热筒上的数个导热片而呈辐射状，或包 括一辐射状的导热筒而呈辐射状，通过在蒸镀坩埚中放入上述导热装置，经由导热装置的传热路径，可以使坩埚壁上的热量均匀的传递至坩埚的内部及中心，提高坩埚内部材料受热的均匀性，使得材料的蒸镀状态保持稳定，提高蒸镀效果；且该导热装置易加工，成本低，导热效果好，安装拆卸方便。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为现有的蒸镀坩埚中升华型材料由于受热不均匀形成空隙的示意图；
图2为现有的蒸镀坩埚中熔融型材料由于受热不均匀形成半熔融态的示意图；
图3为本发明的导热装置的第一实施例的结构示意图；
图4为本发明的导热装置的第二实施例的结构示意图；
图5为本发明的导热装置的第三实施例的横截面示意图及组成导热筒的一导热板的示意图；
图6为本发明的导热装置的第四实施例的横截面示意图及组成导热筒的一导热板的示意图；
图7为本发明的蒸镀坩埚的结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图3-4，本发明提供一种放置于蒸镀坩埚中使用的导热装置，包括一导热筒10与安装于该导热筒10上的数个导热片20，其中，所述导热筒10的侧壁与导热片20上均设有数个通孔30，所述通孔30可以使蒸镀坩埚内的材料联通及流动，提高坩埚内部的导热均匀性。
具体的，所述导热筒10的横截面为轴向对称图形，从而提高导热的均匀性。
具体的，所述导热筒10的横截面可以为圆形，也可以为轴向对称的凸多边形，如等腰三角形、等边三角形、矩形、正方形等；如图3所示的导热装置的第一实施例中，导热筒10的横截面为圆形；如图4所示的导热装置的第二实施例中，导热筒10的横截面为正方形。
具体的，所述导热筒10的侧壁上设有位于数个通孔30之间的数个条形凹槽15，所述数个条形凹槽15的延伸方向均平行于所述导热筒10的延伸方向，所述数个导热片20分别卡合于数个条形凹槽15中，从而安装于导热筒10上，且该安装方式拆卸方便。
优选的，所述数个条形凹槽15均匀的分布于所述导热筒10的侧壁上，从而使得所述数个导热片20均匀的分布于所述导热筒10的四周，提高导热装置传热的均匀性。
如图3-4所示的该第一种的导热装置，通过在导热筒10的周围安装数个导热片20，使得该导热装置呈辐射状，从而可提高导热的均匀性。
具体的，所述通孔30的形状可以为圆形、矩形、三角形、凸多边形、或星形等。优选的，所述导热筒10的侧壁上的数个通孔30分布均匀且形状和尺寸相同，所述导热片20上的数个通孔30分布均匀且形状和尺寸相同。
具体的，所述导热筒10与导热片20的材质一般为金属，如钛合金、铝合金、不锈钢等。
通过在蒸镀坩埚中放入上述导热装置，经由导热筒10与导热片20的传热路径，可以使坩埚壁上的热量均匀的传递至坩埚的内部及中心，有利于提高坩埚内部材料受热的均匀性，使得材料的蒸镀状态保持稳定，提高蒸镀效果；且该导热装置易加工，成本低，导热效果好，安装拆卸方便。
请参阅图5-6，本发明还提供另一种放置于蒸镀坩埚中使用的导热装置，包括一导热筒10，所述导热筒10的横截面为具有三个角以上的星形，该星形的每个角均由两个导热板11围成，从而使得所述导热筒10由6个以上相互连接的导热板11组成，其中，每个导热板11上均设有数个通孔30，以使蒸镀坩埚内的材料联通及流动；如图5所示的导热装置的第三实施例中，导热筒10的横截面为具有四个角的星形；如图6所示的导热装置的第四实施例中，导热筒10的横截面为具有五个角的星形；该第二种的导热装置中，由于导热筒10本身呈辐射状，因此不需要在导热筒10的周围安装导热片，即可实现良好的导热均匀性。
具体的，组成所述导热筒10的数个导热板11可以一体成型，也可以通过焊接等方式固定连接在一起，甚至可通过可拆卸的方式活动连接在一 起。
具体的，所述导热筒10的横截面为轴向对称图形，从而提高导热的均匀性。
具体的，所述导热筒10的材质一般为金属，如钛合金、铝合金、不锈钢等。
进一步的，请参阅图7，同时参阅图3至图6，本发明还提供一种蒸镀坩埚，包括坩埚本体50、放置于坩埚本体50内部的导热装置60、及设于所述坩埚本体50上方的坩埚盖70，所述导热装置60可以为如图3-4所示的第一种的导热装置，也可以为如图5-6所示的第二种的导热装置。
具体的，所述导热装置60的高度小于所述坩埚本体50的内部空间的高度，所述导热装置60的径向尺寸小于所述坩埚本体50的内部空间的径向尺寸。
综上所述，本发明提供的一种导热装置与蒸镀坩埚，所述导热装置包括一导热筒与安装于该导热筒上的数个导热片而呈辐射状，或包括一辐射状的导热筒而呈辐射状，通过在蒸镀坩埚中放入上述导热装置，经由导热装置的传热路径，可以使坩埚壁上的热量均匀的传递至坩埚的内部及中心，提高坩埚内部材料受热的均匀性，使得材料的蒸镀状态保持稳定，提高蒸镀效果；且该导热装置易加工，成本低，导热效果好，安装拆卸方便。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种导热装置，包括一导热筒与安装于该导热筒上的数个导热片，其中，所述导热筒的侧壁与导热片上均设有数个通孔。
  2. 如权利要求1所述的导热装置，其中，所述导热筒的侧壁上设有位于数个通孔之间的数个条形凹槽，所述数个条形凹槽的延伸方向均平行于所述导热筒的延伸方向，所述数个导热片分别卡合于该数个条形凹槽中。
  3. 如权利要求1所述的导热装置，其中，所述导热筒的横截面为圆形或轴向对称的凸多边形。
  4. 如权利要求1所述的导热装置，其中，所述导热筒与导热片的材质为金属。
  5. 一种导热装置，包括一导热筒，所述导热筒的横截面为具有三个角以上的星形，该星形的每个角均由两个导热板围成，从而所述导热筒由6个以上相互连接的导热板组成，其中，每个导热板上均设有数个通孔。
  6. 一种蒸镀坩埚，包括坩埚本体、放置于坩埚本体内部的导热装置、及设于所述坩埚本体上方的坩埚盖，所述导热装置包括一导热筒与安装于该导热筒上的数个导热片，其中，所述导热筒的侧壁与导热片上均设有数个通孔。
  7. 如权利要求6所述的蒸镀坩埚，其中，所述导热筒的侧壁上设有位于数个通孔之间的数个条形凹槽，所述数个条形凹槽的延伸方向均平行于所述导热筒的延伸方向，所述数个导热片分别卡合于该数个条形凹槽中。
  8. 如权利要求6所述的蒸镀坩埚，其中，所述导热筒的横截面为为圆形或轴向对称的凸多边形。
  9. 如权利要求6所述的蒸镀坩埚，其中，所述导热装置的高度小于所述坩埚本体的内部空间的高度，所述导热装置的径向尺寸小于所述坩埚本体的内部空间的径向尺寸。
  10. 一种蒸镀坩埚，包括坩埚本体、放置于坩埚本体内部的导热装置、及设于所述坩埚本体上方的坩埚盖，所述导热装置包括一导热筒，所述导热筒的横截面为具有三个角以上的星形，该星形的每个角均由两个导热板围成，从而所述导热筒由6个以上相互连接的导热板组成，其中，每个导热板上均设有数个通孔。
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