Question about toasting smt components - Electronic Circuits Projects Diagrams Free

pmichner · 15th February 2008, 04:37 PM

Hello,
I was reading an article in IEEE Spectrum in which the author describes
his recent experience working with SMT components at the hobby level.
The sizes of his components were too small to work with a regular
soldering iron and solder on a spool, so he described how he put dabs of
solder paste on the trace pads, placed the SMT components, and then placed the board in a toaster oven.
My question is this: are SMT components, including SMT ICs, particularly durable in the presence of extreme ambient temperatures? How is being
in a toaster oven with a tempearature I don't know exactly how hot but
certainly over what I've seen on IC spec sheet tolerances not ruining
the chips?
Thanks!

theinfamousbob · 15th February 2008, 05:12 PM

I think this will answer all of your questions:
http://www.seattlerobotics.org/encod...6/oven_art.htm

pmichner · 15th February 2008, 05:29 PM

Thanks for that link. I wouldn't have thought ICs could stand 6.5 minutes at temperatures over 200 F. but facts trump preconceptions.

theinfamousbob · 20th March 2008, 05:15 AM

Stumbled on some controllers while browsing through the Hack a Day archives:

http://forum.sparkfun.com/viewtopic.php?p=42893

aussiepoof · 20th March 2008, 08:21 AM

You can also use a cheap-as-chips non-stick electric frypan:

http://www.sparkfun.com/commerce/pre...flow%20Skillet

...and the Sparkfun guys found it was more useful in many respects than their expensive (though still low-end) reflow oven!

P.

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15th February 2008, 04:37 PM	(permalink)
pmichner	Question about toasting smt components Hello, I was reading an article in IEEE Spectrum in which the author describes his recent experience working with SMT components at the hobby level. The sizes of his components were too small to work with a regular soldering iron and solder on a spool, so he described how he put dabs of solder paste on the trace pads, placed the SMT components, and then placed the board in a toaster oven. My question is this: are SMT components, including SMT ICs, particularly durable in the presence of extreme ambient temperatures? How is being in a toaster oven with a tempearature I don't know exactly how hot but certainly over what I've seen on IC spec sheet tolerances not ruining the chips? Thanks!

15th February 2008, 05:12 PM	(permalink)
theinfamousbob	I think this will answer all of your questions: http://www.seattlerobotics.org/encod...6/oven_art.htm __________________ -Ian

15th February 2008, 05:29 PM	(permalink)
pmichner	Thanks for that link. I wouldn't have thought ICs could stand 6.5 minutes at temperatures over 200 F. but facts trump preconceptions.

20th March 2008, 05:15 AM	(permalink)
theinfamousbob	Stumbled on some controllers while browsing through the Hack a Day archives: http://forum.sparkfun.com/viewtopic.php?p=42893 __________________ -Ian

20th March 2008, 08:21 AM	(permalink)
aussiepoof	You can also use a cheap-as-chips non-stick electric frypan: http://www.sparkfun.com/commerce/pre...flow%20Skillet ...and the Sparkfun guys found it was more useful in many respects than their expensive (though still low-end) reflow oven! P.