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Hand Solder - time alloted per lead

Russ Steiner

#18373

Hand Solder - time alloted per lead | 7 December, 2001

I have a mixed technology PCB that has SMT all on bottom, TH parts on both sides (Yes, I realize that's bad. Can't be avoided.) We have designed a 10-up panel, 2 x 5 array. There are 50 leads per bd, 500 per panel. How much time is reasonable to allot for the population of the 3 connectors (20pin, 20pin, 10pin) then hand soldering, in a production push line setting? IPC-610 Class-2. Help!? Thanks, RS

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cmay

#18375

Hand Solder - time alloted per lead | 7 December, 2001

If you allow 3 seconds for insertion of each connector and 2-3 seconds for each solder joint, then add a 10-12% contingency allowance you shouldn't be far out. Maybe get an averagely rated operator to build one on the clock.

Regards,

Chris

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#18379

Hand Solder - time alloted per lead | 7 December, 2001

There is not enough time in the day to reliably hand solder these connections.

Go buy yourself a solder fountain and spare yourself and your company the misery. Check the fine SMTnet Archives for sources of supply.

Everything has a price. A solder fountain is the price of your: * Designers� sloppy design practices. * Company�s lack of a rigorous DFM process.

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#18393

Hand Solder - time alloted per lead | 11 December, 2001

Go to http://www.tekais.com and then to the the "Self Soldering Connectors"

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#18399

Hand Solder - time alloted per lead | 11 December, 2001

Sure those products and other competitors listed in the fine SMTnet Archives provide a uniform solder deposit, how do you suggest that Russ provide the proper amount of flux and heat to properly form his solder connection?

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#18418

Hand Solder - time alloted per lead | 12 December, 2001

Dave,

In response to your question on flux and heat application; the flux is already incorporated into the solder deposit and the connector usually solders in a standard convection oven profile.

If you need more details you can contact me offline at; zanolli@tekais.com or call 401-785-4110

Regards Jim Zanolli

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