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High Thermal Dissipation Apparatus for U V LEDs Application

机译:U V LED应用的高散热设备

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In this study, composite electroplating technique is used to fabricate the diamond-added copper heat spreader for UV LED applications. Thermal dissipation characteristic and optical performance are improved as the composite diamond-added copper heat spreader adoption. The low thermal resistance of 18.4 K/W with UVLED using diamond-added copper heat spreader was measured. Surface temperature of UV LED using the diamond-added copper heat spreader is 50.42 ℃ at 500 mA injecting current lower than pure copper heat spreader of 59.9 ℃ and original heat spreader of 90.4 ℃. The thermal diffusivity of the diamond-added copper is 0.7179 cm2/s measurement by laser flash method. Output power and power efficiency of UV LEDs are also enhanced to 71.81 mW and 4.32 %, respectively, at 400 mA injection current. The optimal structure design and materials fabrication will be discussed.
机译:在这项研究中,复合电镀技术用于制造用于UV LED应用的添加金刚石的铜散热器。通过采用复合金刚石复合铜散热器,改善了散热特性和光学性能。使用添加了金刚石的铜散热器,使用UVLED测得的低热阻为18.4 K / W。使用添加了金刚石的铜散热器的UV LED在500 mA注入电流下的表面温度为50.42℃,低于纯铜散热器59.9℃和原始散热器90.4℃。通过激光闪光法测定的添加金刚石的铜的热扩散率为0.7179cm 2 / s。在400 mA注入电流下,UV LED的输出功率和功率效率也分别提高到71.81 mW和4.32%。将讨论最佳的结构设计和材料制造。

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