IPC Certified IPC Specialist (CIS)

A 'cold solder joint' is characterized by:

Excessive solder volume with good wetting A dull, grainy, or crystalline surface texture indicating insufficient heat during soldering Solder that has been applied at temperatures below 100°C A joint with missing flux residue

Correct Answer:

A dull, grainy, or crystalline surface texture indicating insufficient heat during soldering

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