Electronics Forum: solder dipping profile (Page 1 of 279)

BGA flux dipping process

Electronics Forum | Tue Jun 02 22:19:17 EDT 2009 | mikehe

We have been doing BGA's for years now, and I would suggest updating your profile and place a thermal couple on the BGA, keep in mind the bigger the part the more heat it will need, We stencil print all of BGA's from simple bga's to complex ones, you

BGA flux dipping process

Electronics Forum | Tue Jun 02 21:13:08 EDT 2009 | kircchoffs

thanks for the inputs. we are planning to run on fuji nxt i think cycle time will not be an issue. i still have another question if we can still use the same reflow profile for paste? or do we need to create another profile?

BGA flux dipping process

Electronics Forum | Mon Jun 15 15:33:51 EDT 2009 | hegemon

IMHO I would suggest that if you are using flux only during a BGA placement on a small run, that you first tin the pads with your soldering iron, then level the pads back out with wick. Accomplishes two things; adds a little metal to the joint to ma

BGA flux dipping process

Electronics Forum | Mon Jun 01 21:40:18 EDT 2009 | kircchoffs

i need some inputs regarding this process. is this really eliminates voids and other solderability issues on BGA's?

Ag-plated LED dipping - high level of Cu and Ag

Electronics Forum | Wed Aug 15 16:04:23 EDT 2001 | davef

First, responding to your question � Several things on copper dissolution in solder are: * A 50um copper wire will dissolve in 60Sn / 40Pb solder at: - 200�C solder in 55 seconds; - 250�C solder in 20 seconds; - 300�C solder in 5 seconds; - 350�C so

Ag-plated LED dipping - high level of Cu and Ag

Electronics Forum | Tue Aug 14 23:58:19 EDT 2001 | Glen Brian

We are using the new auto-dipping machine for LED solder dipping and dragging. The flux is water-soluble flux and the solder is 63/37 at 250 deg. C. Two weeks ago we exchanged the pot with new 63/37 solder. About a week, we found that the high level

reflow profile

Electronics Forum | Fri Sep 21 11:02:37 EDT 2001 | davef

You can measure temperatures any place that you would like, but the issue is the temperature of the solder. We've seen solder temperatures that vary from lead to lead on the same component. Why don't you want to measure the temperature of your so

reflow profile

Electronics Forum | Fri Sep 21 21:43:16 EDT 2001 | dougk

We're used to placing the theromcouple on the solder joint and securing it with thermally-conductive UV adhesive. It's quick & easy to apply, and I've only seen a couple degrees difference from high-temp solder technique. Thoughts?

reflow profile

Electronics Forum | Fri Sep 21 10:44:34 EDT 2001 | slthomas

You can, and for small parts you probably won't see much difference between body temp. and lead temp. For QFPs or PLCCs there will be a much greater delta, though. I'd be more concerned with the small surface area you're making contact on (spherica

reflow profile

Electronics Forum | Tue Feb 19 09:24:25 EST 2019 | cyber_wolf

Reflow profiles are based on the product and materials you are soldering. You need profiling software and a data logger.

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