Mobile phone camera module CCM laser welding application solution

Mobile phone camera module CCM laser welding application solution

The principle of the camera CCM module: the light collected by the object through the lens (lens) is converted into an electrical signal through the CMS or CCD integrated circuit, and then converted into a digital image signal through the internal image processor (ISP) and output to digital signal processing. It is processed by a processor (dsp) and converted into standard image signals in grb, yuv and other formats.

Principle of laser soldering: CCM module laser soldering uses lead-free tin materials (tin balls or solder paste), and special laser soldering equipment. The welding process does not spatter, tin explodes, and is high-precision welding without tin beads.

Shenzhen Zichen laser soldering equipment manufacturer, a domestic camera module company, asked us to use the laser soldering process for proofing and testing. After a comprehensive evaluation, we decided to use the laser soldering process for proofing. The solder ball is melted by the laser and the molten state is heated using nitrogen. The solder balls hit the pads of the camera module and form a solid connection after cooling. The laser solder ball welding machine can spray balls as fast as 3 balls/second, and the final welding effect is as follows: