Electronics Forum | Thu May 08 10:44:48 EDT 2003 | mark_susol
I am experiencing a problem with print misregistration only in one direction on our UP2500. When it prints from front to back I get perfect regsitration on micro BGAs, but on the second stroke moving back to front I get a misregistration in the strok
Electronics Forum | Tue May 13 06:57:10 EDT 2003 | davef
Your vendor site is totally correct. 2Ag is an excellent solder, but it does nothing to prevent tin and gold from reacting chemically. An earlier poster is correct gold goes into solution in liquid solder very fast, less than a second. Gold and ti
Electronics Forum | Wed May 21 13:26:46 EDT 2003 | Brian W.
Something else to keep in mind when you reflow using an IR (non-convection) oven. IR reflow is more susceptible to variations in board mass and coloration than convection ovens. Hi mass areas and dark colored parts will cause more variation in your
Electronics Forum | Fri May 16 11:19:23 EDT 2003 | blnorman
In addition to the information provided above, we put a bar code label on each of our PCB's, and on 4 lines we burn in the bar code with a laser. That way we have traceability on that board throughout our process. At the end of the line another bar
Electronics Forum | Fri May 16 11:42:06 EDT 2003 | JB
We have used "feeder templates" in the past to keep components, that are shared by different products, on the same feeder slot number and it has worked well for us.We create a "master set up" say for product A that use 60 different components, the ne
Electronics Forum | Fri May 16 13:30:10 EDT 2003 | T.Vick
Tom, You've recieved some good feedback so far... keep in mind that both models of machines you have utilize a 4x40 configuration. This allows for even greater flexibility if your jobs are small enough. We also offer Dual Track Feeders to shrink t
Electronics Forum | Tue May 20 11:09:30 EDT 2003 | JB
Hello Gav, We have tried the procedure that you described, and it didn't work well for us. Even though the viton tubing is doubled up and pinched, no amount of glue is visible at the tip of the tubing. So getting the glue to protrude from the syring
Electronics Forum | Mon May 19 18:10:43 EDT 2003 | msjohnston
A chemical change is needed to reduce VOC�s in our spray-in-air stencil cleaner. Items that are to be considered to effectively find a replacement chemical that works as well, or better than the current chemical include, but not limited to, the foll
Electronics Forum | Tue May 20 12:20:58 EDT 2003 | billschreiber
Hello Mike, We have just sent out the press releases. 440-R SMT Detergent, the only chemistry to complete the EPA's Environmental Technology Verification (ETV) Program, as part of the Smart Sonic Stencil Cleaning Process, is now available for use i
Electronics Forum | Wed May 21 14:44:38 EDT 2003 | blnorman
We currently use Vigon SC-202 in our spray in air system. SC-202 has 830g/l VOC content, so I don't know if that will help reduce your VOC's or not. We used Smart Sonic 440-R in ultrasonic application with great results, but we haven't tried it in
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