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Pasting the Solder on the PCB

Pasting the Solder on the PCB

Paste the solder on the PCB surface with a solder paste machine. Solder is a metal used to adhere electronics parts onto a PCB.

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Checking for Residue from Flux after Soldering

Residues from flux on a PCB sometimes remain after soldering, which can cause the PCB to corrode. As a result, inspectors need to check for the presence of flux residues after soldering.

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Flux can be observed with fluorescence observation. A high-magnification image from the BX53M microscope with fluorescence observation enables you to easily detect if there are flux residues on a PCB.