Application - LED

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Application - LED

What are the benefits for LEDs of using NanoWired technologies?

Basic knowledge

  • Above 120°C the doping decreases under voltage → P-N junction disappears / dies off
  • A light emitting diode, for example, can be operated at up to 119°C, but as soon as it reaches 120°C, it very quickly dies of heat exhaustion.
  • If an exact temperature measurement and a good thermal connection can be created → the LED can be brought closer and closer to its maximum temperature load.
  • In order to get the maximum luminous efficacy out of light-emitting diodes, for some years now light-emitting diodes have no longer been operated at their ideal operating point (maximum efficiency), but at the point of maximum current where there is just no backdoping.
  • Normal soft solders lose their mechanical strength at approx. 115°C.
  • Solder layers already expand strongly and the internal resistance of the junction increases → leading to a further
    to a further temperature increase in the joint due to power dissipation → the maximum light output of light-emitting diodes cannot be achieved with normal soft solders that have no additive for increased temperatures.


  • The pure copper not only conducts the current better and thus contributes to negligible heating of the connection, but also the resulting power loss is better dissipated from the light emitting diode due to the higher heat dissipation of copper.
  • In addition, the strength of the joint and thus also the performance at 120°C remains unaffected. Since the melting temperature of copper is 1,085°C, there are no mechanically relevant changes in the material up to above 500°C.
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