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This thread is privately moderated by Jack Crossfire, who may elect to delete unwanted replies.
May 30, 2009, 04:17 AM
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SMT master

The answer is yes. A heat gun can desolder SMT chips. Good news if U plan on many revisions.

20 minute exposures still aren't bulletproof. Need to dilute only enough draino to cover 1/2 of the bottom of the container & keep using the cotton swabs. Only took 1 hour to expose & etch the last board.

Remove contact lenses before soldering. That gives objects 20 microns away the same sharpness that normal people see 20 ft away. It's like going to atomic force microscope mode.

After another 2 hours banging on the soldering iron & getting nowhere again, decided to blast it with the heat gun to remove it. It automatically centered itself on the pads, joined all the solder balls, & started working!

That probably won't work for anything that blows away & U need guess when to stop blasting.
Last edited by Jack Crossfire; May 30, 2009 at 04:31 AM.
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