Electronics Forum | Sun Oct 17 11:26:36 EDT 2010 | methos1979
New to this forum and AOI. After an exhaustive search and review my company purchased our department a Mirtec MV-3L desktop AOI system. We use a combination of SMT and through-hole components in our product. I am currently learning to program th
Electronics Forum | Tue Nov 30 02:46:21 EST 2010 | libandara
We want to handle the materials such as PCB & MSD components as per IPC 1601 & J-STD-033. As such, we need a baking oven to perform this and to monitor (temperature – we have to maintain up to 200’C & humidity – below 5%)the control environment & ma
Electronics Forum | Thu Dec 09 10:40:45 EST 2010 | grahamcooper22
MSL 3 means you can have the devices open for a maximum of 168 hours in an atmosphere of less then or equal to 30 C and 60% RH. If the humidity is less then 60% then it means the devices will absorb less moisture in a given time, but even at 40% RH y
Electronics Forum | Tue Feb 08 04:27:55 EST 2011 | thomas111
hi, I am a Hardware designer . One of my products is undergoing a Reliability test in which a resistor shows a high value on board from its specified value .However it retains the original value when its cooled under room temperature. The resistor
Electronics Forum | Tue Mar 01 15:13:22 EST 2011 | felixgutierrez
Hi Everyone. I would like your input in regards to lead free solder paste lead free. Which one is the most reliable solder for BGA's and BTC's (QFN). I have used different type of solder and on some of them i get big voids on BTC's and other one i g
Electronics Forum | Thu Mar 24 11:04:41 EDT 2011 | smt_guy
Hi, I have a 2.75" x 1" x 0.027"thick CCA with SOIC16W and QFN56 as well as some 0201's, 0402's and QFN16 Components that are to be enclosed via molding process. Is there any Insert Moling, Over Molding Circuit Card Assembly Guidelines out there fr
Electronics Forum | Thu May 26 16:41:00 EDT 2011 | scottp
Here's what I do: - Test Surface Insulation Resistance (we're in the high reliability market and use a test significantly harder than IPC's). I also test SIR in combination with other assembly materials like conformal coatings and wave solder flux
Electronics Forum | Mon Aug 29 16:21:20 EDT 2011 | rjlasko
Greetings...I have a customer that has an assembly that is conformal coated with Humiseal 1A33. This assembly has some components (resistors and FET's) that heated up during operation and has discolored the conformal coating around their location.
Electronics Forum | Tue Sep 20 08:53:13 EDT 2011 | jocelynlauzon
My company is looking for an IPC expert consultant in BGA underfilling to support an important contract that is being prepared. We are looking for someone with hands-on experience with large (~2"x2", with as much as 1800 pin, 1mm pitch, 0.5mm ball di
Electronics Forum | Tue Nov 01 09:16:03 EDT 2011 | austinpeterman
Hello, Looking for a solution to silicon conformal coating wicking up into connectors. We build IPC-A-610 class 2. We are using a PVA 650 with Dow Corning 1-2577 conformal coating. We have solder joints that must be coated 1.25mm from the connecto
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