Electronics Forum | Wed Sep 01 13:58:10 EDT 1999 | Dave F
| Is it feasible to have one type of board carriers to take boards thru 1) glue curing process for first side and 2)invert carriers with boards, and 3)reflowing second side, and 4) do manual stuffing of th components and 5) take them thru selective w
Electronics Forum | Tue Jan 24 07:43:45 EST 2006 | Chunks
Q: 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? A: No. Your board house can cover your vias with solder resist. Your board house can plug the vias. You can cover t
Electronics Forum | Fri May 25 09:50:23 EDT 2007 | ck_the_flip
Grant, the BGA Kid's got a great point. You state, simply that you're looking to completely replace wave soldering with selective soldering, but the only reason given was "the wave is old". The throughput differences will be huge if you're solderin
Electronics Forum | Thu Jul 10 13:34:43 EDT 2008 | rwyman
We have a Vitronics mySelective machine (model 6749, or "the Fat Bastard" as we affectionately call it). It's configurable with various combinations of "select wave" and "multi wave" pots. Ours has one of each. The "select wave" is for the most pa
Electronics Forum | Fri Dec 01 12:40:04 EST 2000 | Dason C
I agreed with PeteC to use the selective wave pallet, please aware TSSOP is classify as MSL 3. The advantage of the surface mounting allow both package body size and thickness to decrease but also increase the density of the package. Direct heating
Electronics Forum | Tue Oct 16 09:08:34 EDT 2001 | davef
Adding to Mike's comments. There are two types of selective wave soldering machines. * Chimney type, like the AirVac and Wenesco that Mike used. They use a boot to funnel the solder to the component to be soldered. * Programmable head type [ie, ERS
Electronics Forum | Sat Nov 05 01:22:23 EST 2005 | koeka
All, We are having insufficient hole fill only at DIMM connector area(120 pin/row total two or 4 rows at that area) when we switch to lead free (SAC and Sn/Cu). The finish we using is immersion silver. Preheat on top side ~98-118oC. Rosin flux type.
Electronics Forum | Thu Feb 15 08:34:50 EST 2007 | rgduval
Jim, In a previous life, we built some flex circuits for a customer. The configuration was a flex cable, with a circuit at one end of it. We had fixtures made out of the same material that we had selective wave solder fixtures made from. Cut an i
Electronics Forum | Thu Apr 30 02:39:48 EDT 2009 | michafogel
Thanks for the info so far, but still need a number or a formula to calculate. The site you have point me to can support in a way, but if I want to release a design procedure to our editors, a number will be very helpful. One more issue is what can b
Electronics Forum | Thu Apr 30 22:40:32 EDT 2009 | davef
Selective Wave Soldering DoE to Develop DfM Guidelines for Lead and Pb-Free Assemblies Written by Makram Boulos, Craig Hamilton, Mario Moreno, Ramon Mendez, German Soto and Jessica Herrera Circuits Assembly Magazine, 31 December 2008 19:00