Laser Soldering

Laser soldering is a process which selectively heats solder by means of laser irradiation (usually utilizing a direct diode laser) which forms a bond between two parts.

Advantages of laser soldering include:

  • Localized/selective heat input
    • Ideal for heat sensitive components
    • Does not heat/damage adjacent components
    • High precision – spot sizes on the order of 100s of microns
  • Fast control of heat input (laser on/off)
  • Non-contact processing for joining in spaces with limited accessibility (vs. iron tip soldering)
  • Efficient and homogeneous heat input

The primary application for laser soldering is laser soldering of circuit boards in the electronics industry.

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