Electronics Forum | Tue Jun 27 16:05:33 EDT 2006 | grantp
Hi, Do you mean selective palettes in the wave? We are running those, and it makes the process window tight, but once we got there, it's great. Pre heating the board was a bit difficult, but we got it right, and went for a water based flux. Not sure
Electronics Forum | Mon Dec 18 14:36:09 EST 2006 | samir
Yikes!! In-line cleaning, to clean cosmetic and benign residues (from a NO-CLEAN) flux... You sure you can't switch fluxes? Another variable with residues is the solder mask. Depending on mask type (glossy, matte, semi-gloss, or semi-matte), will
Electronics Forum | Mon Dec 18 23:24:50 EST 2006 | grantp
Hi, Yes, I would hate to resort to cleaning, but the product must be clean. We have been using palettes to keep most of the flux off the PCB, but there is still residue around the connectors. Does anyone suggest a good no clean flux to use with le
Electronics Forum | Tue Feb 27 12:45:08 EST 2007 | russ
Boy it is good to see the wave master back in action! I mean really guys, is Larry the only one here who knows that the lead turns into vapor in the oven and then in the cooling zones it falls back onto the board and creates the solder joints? P.
Electronics Forum | Tue Mar 27 06:37:14 EDT 2007 | realchunks
There is no "standard" or "procedure". Your customer is putting a requirement on you because this has probably lead to weak QFP solder joints breaking in the field or non-functioning units due to co-planar QFP legs. I�ve been there done that. Had
Electronics Forum | Fri Apr 20 03:41:50 EDT 2007 | aj
Hi All, We did not change our internal Solder pot components (stainless steel)when we switched to Leadfree Alpha SACX . Running approx: 1 year now and I carried out checks yesterday and we have some signs of erosion. Did not expect to see this so s
Electronics Forum | Thu May 24 22:56:42 EDT 2007 | davef
We'd guess that your white residue on the solder is from minerals in the supply water. We expect the levels of these minerals that you see: * Vary depending on the season. Check with your public water authority for anaylsis. [Recognize that this ma
Electronics Forum | Fri Jul 13 12:20:33 EDT 2007 | jdumont
There are a lot of areas that could be leading to this problem. We have some of these issues on some boards with this solder as well but the hole fill still meets IPC class 3 requirement of 75% vertical hole fill. Through hole diameter is important.
Electronics Forum | Wed Aug 06 09:32:46 EDT 2008 | grics
We have a 3/6 Nozzle We do have monitors. One of our pots is leaded, the other is lead free. Our average wave height is ussually around 50%. Also, do you have any or found any benefits to removing nozzels at the end of your shift. I recall you say
Electronics Forum | Thu Jul 31 13:42:08 EDT 2008 | comatose
I'm looking to fill a solder fountain with 50lb of SN100C. My usual source for paste and the like doesn't stock this alloy. We run double sided reflow, so we're not going to be needing hundreds of pounds for a wave machine at any point. Who is the
