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The Knowledge and Know-how Connection
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May 24, 2013
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Views: 4198
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We had a similar problem many years ago. A thru-hole crystal was coming out of the solder machine completely unsoldered. After a bit of thought, I tried bending the crystal a bit so it sat tilted on the board. Problem solved.
The crystal was providing a seal so the flux couldn't escape. That must've been causing a small gas bubble to form around the pad area and prevented solder from reaching the pad. We use a "dip" type solder machine made by Unit Design. That was really a fun puzzle to solve!
Patrick Muldoon, JPD Controls, Inc