Electronics Forum | Fri Jan 18 18:19:38 EST 2008 | arun2382
Is normal DI rinse cycle enough to wash away all residue after SMT assembly of high density substrate? This substrate would later be over molded to form MCM module package and I am seeing delamination in high density areas of the substrate at MSL3
Electronics Forum | Thu Nov 20 13:00:36 EST 2008 | jameskelch
Calling out materials by name locks you into laminates by brand. If these are typically phenolic materials it can lead to moisture absorption, less mechanical strength and more prone to delamination during assembly. It is more effective to refer
Electronics Forum | Mon Feb 18 08:56:44 EST 2008 | operator
It does exist. We used to have one here, but sold it. It was more of a manual process though. You put the assembled board on the work table and then set your cutting blade height. Then you manually moved the cutting blade around shearing off the TH l
Electronics Forum | Thu Mar 13 09:24:56 EDT 2008 | scotceltic
We use a program called Circuitcam by Aegis. It allows you to import all types of Cad and associate the parts to the different processes. Ex. SMT, Radial, Inspection, Hand Insert. (Customizable depending on your process) Once this is complete it
Electronics Forum | Mon Mar 17 08:45:59 EDT 2008 | karkanov
Picture are great but yuo need to take them in the same times as the first run. You can't do it before, so you people loose some time when you take the picture and are not quiet sure what to do if your not able to be with them. That's why it is goo
Electronics Forum | Tue Mar 25 10:11:03 EDT 2008 | bandjwet
We recently sent some PCB assemblies along with the schematics to a test services provider. Afer paying for the NRE tooling charges we were paying $75.00 per hour for the service providers Level 1 test technicians. Does this sound like a fair rate (w
Electronics Forum | Wed Mar 26 20:48:22 EDT 2008 | davef
Sealing clip, clamps used in semiconductor, hybrid packaging * Connor Manufacturing Services; 16233 N.E. Cameron Blvd., Portland, OR 97230; 503-256-0230 F503-256-0246 connorms.com * Electro Assembly Source; 602 Sciandro Dr, Greensburg PA 15601; 724-8
Electronics Forum | Tue May 13 08:02:28 EDT 2008 | avalancher
Interesting thought. Among the many thoughts that came to mind while reading your post, one stands out for me. While making a cost effective machine is a great idea, it seems obvious that there will be some trade offs on quality. The cheaper the ma
Electronics Forum | Thu May 29 11:02:23 EDT 2008 | markhoch
Omid, Your best bet would be to obtain and read the various machine manuals for the equipment that you have. HOWEVER, "programming" the reflow oven, (otherwise known as profiling), is product and solder paste specific and will most likely NOT be cove
Electronics Forum | Tue Jun 03 12:29:58 EDT 2008 | slthomas
We don't build anything with BGA yet so don't have this standard but IPC-7095B, Design and Assembly Process Implementation for BGAs would be a good place to start. I don't know for a fact that it contains info. that applies specifically to your iss
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