Electronics Forum | Fri Jun 08 13:49:11 EDT 2007 | ck_the_flip
From my past experience, you can usually get away with OUT the chip wave if your SMD's are no smaller that 0805, and more importantly, there are no SOT23's. A nice, clean, inerted laminar wave (with a little smart or omega help) will solder your S
Electronics Forum | Tue Jan 24 04:09:27 EST 2006 | aj
Hi all, I would like to hear from more experienced selective wave pallet users out there. If you do not use a selective wave pallet does this not leave the possibility of solder flowing up thru the Via's on the board. I have identified this as been
Electronics Forum | Thu Jan 23 20:27:54 EST 2003 | joeherz
Hello, We recently installed a new/used UPK 650 fitted with a foam fluxer using an RMA flux chemistry. We have had problems with icicling and bridging from the beginning. The bridging occurs mostly on DIPs and connectors. The icicling is on longer
Electronics Forum | Mon May 31 21:50:59 EDT 1999 | Dave F
| | I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processing a double-
Electronics Forum | Thu Sep 02 14:26:22 EDT 2004 | frankracine
Thanks Russ, very interesting. Are you working with a printer, PNP, reflow and wave? Did you change apertures in your stencils with lead free ? Concerning reflow, do you have a 5 zones, 7 zones ... ? Are you using the same alloys for solder paste
Electronics Forum | Thu Jan 28 10:09:51 EST 1999 | Charles Stringer
| | | | Greetings, | | | | | | | | Can anyone tell me what temperatures pcb's should have when coming out of a forced convection reflow oven and out of a wavesoldering machine. | | | | Also, is there any danger of the pcb's giving off some kind of g
Electronics Forum | Wed Apr 12 21:43:56 EDT 2000 | Micah Newcomb
Is this board going across wave? If not, you are pretty safe to lose the glue process. If it does go across wave you can probably lose the solderpaste and replace your solder stencil with a glue stencil, much faster and efficient than dispensing.
Electronics Forum | Fri Jan 19 17:41:15 EST 2001 | davef
How did you decide the problem is cosmetic? One possibility is poorly cured solder mask. Tell us more about your board, flux and solder materials, and wave process.
Electronics Forum | Tue Oct 21 16:18:35 EDT 2008 | nickh
Hey all, I'm looking for a place to get the solder from my wave flow tested, any suggestions? Thanks!
Electronics Forum | Tue Apr 28 07:22:46 EDT 2020 | stephendo
Are you watching for copper dissolution? At one place I was asked to check why we had no barrels with some PTH locations. It was being dissolved in the solder fountain during rework.
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