Electronics Forum | Fri Mar 26 17:12:17 EST 2004 | ben
I have recently encountered a new pcb design with a very high density of components on either side of the pcb. One of the suggested "fixes" is to use the smt pads as vias i.e. the via will be drilled thorough the centre of the smt pad. My concern i
Electronics Forum | Sun Apr 11 20:03:46 EDT 2004 | Tom B.
You should add a Capacitor Discharge statement in ICT test Software. This could be done by selecting the nodes and have statements to connect relays to ground. Could be possible that the Selective Soldering system is the cause, as problems is now s
Electronics Forum | Tue Oct 26 03:12:36 EDT 2004 | Joseph
Dear all, Recently our production encountered high SOIC failure during testing after reflow soldering. All solder fillets (side/heel) are acceptable as per IPC standard.The reject samples (SOIC)being sent to IC manufacturer to verify the failure. Fin
Electronics Forum | Thu Feb 10 09:14:09 EST 2005 | davef
Don't kid yourself, something has changed. * Worn stencils should produce better release and greater paste deposits than less worn stencils. * Consider inspecting the effectiveness of your cleaning process with a X10 magnifier. * Temperature in your
Electronics Forum | Tue Dec 13 12:46:15 EST 2005 | Slaine
We came across a manufacturer selling us a part that they Classed as RoHS compliant. On further investigations the part was found to contain lead, we use an XRF. The content was over 85% so was exempt and therfor compliant(HMP solder), until we solde
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 | Mon Dec 11 06:29:04 EST 2006 | bwet
See before cversus after pics on BGA pad repair here: http://solder.net/services/services_pad-repair.asp The "how to" instructions for traces (and pads) is here: http://solder.net/solderingtips/PadandTrace_Repair_Solder_Tip12.wmv The skill level
Electronics Forum | Thu Aug 28 11:31:17 EDT 2008 | patrickbruneel
Matt solder mask finishes gives the widest process window in view of potential amount of residues when using No-Clean. Shiny (glass like) finishes are more sensitive to residues due to lower surface area compared to matt finish. If the shiny finish i
Electronics Forum | Tue Nov 11 19:04:28 EST 2008 | diesel_1t
Hi. We're developing production strategy for a new product and it have a display, as the yearly volume is very high, is almost impossible to made this by hand or by selective soldering. I wonder if anyone of you have done something similar with disp
Electronics Forum | Tue Dec 16 16:49:22 EST 2008 | scottd3
We ran into this problem before, on all of our models. We never quite found out the reason, we do know that if the PCB is passed through a reflow oven that is extremely dirty with evaporated solder paste flux, it will make it extremely difficult (or
