Electronics Forum | Tue Jun 29 16:03:57 EDT 1999 | Dave F
snip | John and Dave, | | Again, I don't work with larger chip devices with this issue. The company I now work with developed a strategy, based on considerable research (as others of us did in the past), to do things like placing 0603's on 0402 pad
Electronics Forum | Fri Aug 21 07:38:34 EDT 1998 | Tryin'
| | Will somebody please explain HASL (here). Thanks. | Tryin: HASL: Hot Air Solder Leveled. A board fabrication process that applies an oxidation preventing solder coating to copper pads on the board. Dave F You do this to keep the green stuff (
Electronics Forum | Sat May 18 10:21:09 EDT 2013 | davef
isd.jww: Comments are: * Current thinking has flux volatiles being the major contributor to voiding, not scavanging by via * I have no reason to think that 0.3mm via won't gladly accept solder. Plug them, if that's a concern. * If your concern is ina
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
Electronics Forum | Wed Jun 07 22:02:52 EDT 2006 | Wave Master Larry
Listen, you should try to utilize wave solder as well. High speed gadgets are fine if you want to make things complictded, but if your just starting things up, think simple. Nothing beats wave for solder many parts at the same time. If you can't p
Electronics Forum | Thu Aug 24 09:36:43 EDT 2006 | davef
Medium?? We prefer fully-baked. No, no. It's hearing messages from just about any dead component or board. "Wooo. Chunks. You dove me in the wave solder machine a year ago. I forgive you, because I never saw myself working in a karaoki bar."
Electronics Forum | Thu Jan 04 02:25:12 EST 2007 | Loco
Sorry Dave? There is a seperate table safely hidden away in the D version, but i dont know if it is something new. chapter 7 THT - 7.5.5 Supported holes - solder has a table specifically for PIP, table 7-7 Plated trough holes with component leads -
Electronics Forum | Mon Jul 22 10:37:06 EDT 2013 | torch
we have been asked by a client if we are capable of producing product that will require HMP, I am currently tyring to gather as much info as I can with regards to this solder type and would like help can we run this type of solder through a smt line
Electronics Forum | Fri Oct 12 12:12:13 EDT 2018 | davidsmullins
We have some fairly standard 0.1" pitch, two row, shrouded, through hole headers soldered onto a thick backplane. There are tiny inspection holes along the bottom edge of the plastic body that allow an inspector to observe the top of the through hole
Electronics Forum | Wed Dec 08 17:58:44 EST 1999 | Dave F
Dave: You should see a solder smudge on the gold plating where the ball was attached, if there is (was) solder reflow during either the (1) BGA fabrication, (2) your BGA attach, and / or (3) your BGA removal. You rework will not remove the solder
