Electronics Forum | Thu Jul 29 23:21:51 EDT 1999 | CH Lee
I received a request from customer to assemble ceramic substrate (alumina oxide)that printed with a low temperature Copper thick film conductor (the overglaze layer is polymer). The Copper pads are exposed without any coating. This ceramic substrate
Electronics Forum | Wed Dec 06 07:24:22 EST 2006 | davef
Successful solder paste overprint is a function of the solder paste rheology, solder mask and through hole component stand off. * Solder mask with a high surface energy will permit a larger overprint than a solder mask with a lower surface energy. In
Electronics Forum | Tue Jul 03 10:20:15 EDT 2018 | yannis
Our firm is SMT factory exclude design, components are selected by customers. We are going on a project by studying the solderability life of warranty at least 3 year for customers requirement. The theory is if the workmanship is good enough, then th
Electronics Forum | Fri Jun 16 11:37:15 EDT 2006 | docker
I�m working in Solder paste manufacturing industry and my customer has complained the void issue on BGA pad. I�m internally conducting the void test on BGA pad in my Lab. I used OSP furnish board with Sn/Pb and /or lead free component using Lead free
Electronics Forum | Fri May 29 08:25:13 EDT 2009 | floydf
We are getting what looks like cold solder joints on one of our boards. The boards have an aluminum substrate, and use OSP plating. The solder is lead free - 96.5 Sn, 3.0 Ag, .5 Cu. The flux is no clean. When we first had the problem, my solder profi
Electronics Forum | Tue Nov 01 15:26:43 EST 2005 | GS
Is it this your first experience of C-CGA RWK ? In order to approach a RWK of this kind of pakage it requires a capable process and clear operating procedure. In the past, the company who I use to work for, we rwkd plenty of this kind of CCGA. Earl
Electronics Forum | Fri Sep 04 15:33:09 EDT 2009 | martinphill
Is it possible to Process Top & Bottom side PCBA simultaneously in One SMT Line. (An atrticle by Jagadeesh Rajagopalan, SMT Process consultant). Pls check this and suggest me whether it is possible? & What should be the Lead free Reflow Profile? ht
Electronics Forum | Sat Sep 05 23:15:32 EDT 2009 | prasadz
We have successfully implemented this dual Process You can use any printer that supports Board width 500mm. SMT Dual Process Maximum PCB Width should be (500-20 / 2 ) = 240mm Max (PCB width )Printer support = 500mm Top width + Bottom width
Electronics Forum | Wed Oct 03 23:59:44 EDT 2018 | gaintstar
Flason SMT problem solving: http://www.flason-smt.com/new/PRINCIPLE-OF-SURFACE-MOUNT-PROCESS-SMT-PROCESS.html http://www.flason-smt.com/new/Printed-Circuit-Board-PCB-Price-Estimator.html http://www.flason-smt.com/new/Printed-Circuit-Board-Solder-res
Electronics Forum | Wed Oct 03 23:58:23 EDT 2018 | gaintstar
Flason SMT News: http://www.flason-smt.com/new/6-Things-to-Check-Before-Submitting-Your-PCB-Design-for-Manufacturing.html http://www.flason-smt.com/new/about-wave-soldering-machine-tin-pot.html http://www.flason-smt.com/new/Advantages-of-Design-for-
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