Electronics Forum | Thu Jun 06 09:28:24 EDT 2002 | Hussman69
Sure do, it's from the paste that gets squeezed under your R's and C's. This paste is now on your mask and during reflow, wants to move off the mask. Unfortunatly, it follows the flux residue to the side of your component. An easy fix is to use th
Electronics Forum | Thu Apr 15 15:54:13 EDT 2004 | pjc
You ned to speak with an apps engineer from a paste supplier that can go through their alloys. I know Indium has such alloys. Any vendor should be able to supply you a list of alloys avbl in NC paste with their liquidous points.
Electronics Forum | Wed Sep 07 04:40:50 EDT 2005 | Slaine
i worked for a mobile phone base station manufacturer a few years back and they had a customer in Thiland who were complaing the cabinets we sent them were dented and marked, we investigated, improved packing and goods out inspection but still had th
Electronics Forum | Mon Mar 06 22:30:12 EST 2006 | mainenetservices
We have a customer transitioning slowly to lead free due to necessity rather than a need to comply i.e. some of their BGAs can only be purchased Pb free only. So for this we would want to produce them a leadfree soldered PCB (not necessarly RoHS comp
Electronics Forum | Wed Jul 10 13:45:30 EDT 2013 | pankajp
Hi, Generally how much is solder paste cost consideration in overall quotation. i could gather from the threads on this forum, that solder paste (or raw material) cost in SMT is almost negligible compared to other direct and indirect cost. Is my u
Electronics Forum | Thu Jul 19 08:00:03 EDT 2001 | doctord
Solder balls or mid chip beads? Remember IPC classification for Class 2 allows mid chip beads encapsulated in flux. Usually on R's and C's first thing I would do is verify .006 laser stencil 10% reduction and the most critical, The paste must be on t
Electronics Forum | Wed Apr 27 22:36:47 EDT 2005 | devilhitam
is there any relation between solder paste viscosity and the length of time the solder paste being used in the machine? pls advice....
Electronics Forum | Wed Jul 10 15:35:08 EDT 2013 | rgduval
In general, I've always considered solder paste a part of the overhead costs, along with wire solder, and other consumables utilized on the shop floor. It's a part of the cost of the assembly, but, I don't calculate it directly as a part of quotin
Electronics Forum | Wed Oct 25 12:38:05 EDT 2000 | Phil
Hi there!! You know what your QA is doing is right, coz by measuring the solder paste height can avoid the following defects: 1.Insufficient solder 2.Short solder or bridging 3.Solder balls SPC monitoring for paste height checking is required
Electronics Forum | Wed Jan 14 06:42:38 EST 2004 | tommy
We see spattered(spitting of flux or solder to nearby area) solder/flux on gold fingers.We view the gold fingers area under 30x before reflow and it is cleaned but after reflow we see flux droplets or solder on gold fingers. We tried to changed a new
Capital Equipment Solutions - SMT | PCBA | TEST
Equipment Dealer / Broker / Auctions
113 S Main Street
Lodi, USA
Phone: 6083431779
