Service Information

LED Paste Soldering

LED Paste Soldering

Prior to the addition of the components to a board, solder paste needs to be added to those areas of the board where solder is required. Typically these areas are the component pads. This is achieved using a solder screen.
Detailed Description

Prior to the addition of the components to a board, solder paste needs to be added to those areas of the board where solder is required. Typically these areas are the component pads. This is achieved using a solder screen.

The solder paste is a paste of small grains of solder mixed with flux. This can be deposited into place in a process that is very similar to some printing processes.

Using the solder screen, placed directly onto the board and registered in the correct position, a runner is moved across the screen squeezing a small amount of solder paste through the holes in the screen and onto the board. As the solder screen has been generated from the printed circuit board files, it has holes on the positions of the solder pads, and in this way solder is deposited only on the solder pads.

The amount of solder that is deposited must be controlled to ensure the resulting joints have the right amount of solder.

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Digambar Kale
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