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{"cards":[{"_id":"26652198e5e53fc49a000018","treeId":"266521afe5e53fc49a000016","seq":23039113,"position":1,"parentId":null,"content":"Heat management is the main problem in the application of high brightness LED. Because the P-type doping of group III nitride is limited by the solubility of Mg accepter and the high start-up energy of hole, heat is especially easy to generate in the P-type region, and this heat must be dissipated on the heat sink through the whole structure. The heat dissipation of LED devices is mainly heat conduction and heat convection. The extremely low thermal conductivity of Sapphire substrate material leads to the increase of thermal resistance of the device, resulting in serious self-heating effect, which has a devastating impact on the performance and reliability of the device. The effect of heat on high brightness LED is that the heat is concentrated in the chip with small size, and the increase of chip temperature leads to the uneven distribution of thermal stress and the decrease of chip luminescence efficiency and fluorescent powder laser efficiency. \n\n0.32 inch <a href=\"http://www.xlitx.com/datasheet/3311AG.pdf\" style=\"color: #333;\">3311AG</a> LED Common-Cathode CC <a href=\"http://www.lanpade.com/7-segment-led-dot-matrix/3311ag.html\" style=\"color: #333;\">3311AG</a> 7-Segment digit <a href=\"http://www.xlitx.com/datasheet/3311BG.pdf\" style=\"color: #333;\">3311BG</a> Display <a href=\"http://www.lanpade.com/7-segment-led-dot-matrix/3311bg.html\" style=\"color: #333;\">3311BG</a> Common-Anode CA\n0.32 inch <a href=\"http://www.xlitx.com/datasheet/3231AB.pdf\" style=\"color: #333;\">3231AB</a> LED Common-Cathode CC <a href=\"http://www.lanpade.com/7-segment-led-dot-matrix/3231ab.html\" style=\"color: #333;\">3231AB</a> 7-Segment digit <a href=\"http://www.xlitx.com/datasheet/3231BB.pdf\" style=\"color: #333;\">3231BB</a> Display <a href=\"http://www.lanpade.com/7-segment-led-dot-matrix/3231bb.html\" style=\"color: #333;\">3231BB</a> Common-Anode CA\n\n<hr style=\"border:1px solid;\">\n\n<a href=\"https://gingkoapp.com/led-load-voltage-must-be-lower.html\" style=\"color: #333;\">LED load voltage must be lower</a>\n<a href=\"https://gingkoapp.com/led-brightness-low-key-with-reduced-voltage.html\" style=\"color: #333;\">LED brightness low-key with reduced voltage</a>\n<a href=\"https://gingkoapp.com/different-leds-with-current-and-output-curves.html\" style=\"color: #333;\">Different LEDs with current and output curves</a>\n<a href=\"https://gingkoapp.com/the-working-ratio-change-led-brightness.html\" style=\"color: #333;\">The working ratio change LED brightness</a>\n<a href=\"https://gingkoapp.com/led-heat-dissipation-technology.html\" style=\"color: #333;\">LED heat dissipation technology</a>\n<a href=\"https://gingkoapp.com/led-lamp-work-is-stable.html\" style=\"color: #333;\">LED lamp work is stable</a>\n<a href=\"https://gingkoapp.com/heat-management-with-high-brightness-led.html\" style=\"color: #333;\">Heat management with high brightness LED</a>\n<a href=\"https://gingkoapp.com/heat-dissipation-for-highlight-led.html\" style=\"color: #333;\">Heat dissipation for highlight LED</a>\n<a href=\"https://gingkoapp.com/led-device-to-extract-heat-from-p-n-junction.html\" style=\"color: #333;\">LED device to extract heat from P-N junction</a>\n<a href=\"https://gingkoapp.com/led-lamp-surface-radiation-heat-treatment.html\" style=\"color: #333;\">LED Lamp surface radiation heat treatment</a>"}],"tree":{"_id":"266521afe5e53fc49a000016","name":"Heat management with high brightness LED","publicUrl":"heat-management-with-high-brightness-led"}}