Electronics Forum | Sun Mar 20 12:58:23 EDT 2011 | sellenzz
We have a Nitrogen Silo. Your going to want to be careful if you decide to use nitrogen, not only are the levels unstable most of the time but it can also cause your components to tombstone like crazy, especially if you run a lot of LED's. We run 24/
Electronics Forum | Fri Mar 18 14:22:37 EDT 2011 | bradbriggs
We recently ran into a situation where a SMT header with tin plated tails would not wet properly during reflow. Someone told us that tin plating has a shelf life and needs to be re-tinned after a length of time. I have not heard of that before. Do
Electronics Forum | Fri Mar 25 10:50:01 EDT 2011 | grahamcooper22
3 deg / sec) then the flux can slump from the paste and solder is carried with it off the pad and will form balls. Finally, are your pcbs dry ? Pass a bare one through the reflow oven before you print any paste on it, let it cool and then process as
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 | Fri Apr 01 00:30:45 EDT 2011 | bigvern
Hi, we have a issue with a Dage , Xray, curious as to if any other have had same, we cannot get the the Vacuum level in the tube to the correct level, it builds up and builds up, but never reaches correct set point so that we can calbrate or use the
Electronics Forum | Wed Apr 06 09:33:51 EDT 2011 | markhoch
A "quick and dirty" method would be to start tracking your assembly time per job. Divide by the number of PCBs built, divide again by the number of components per board. This should give you an average placement time per part. You can then use this n
Electronics Forum | Tue Apr 19 14:58:05 EDT 2011 | rdoss
The ribbon cable would be my guess. I ran a IVc for about 3 years and we use to have to change out our cable at least once per year. I also wanted to add that you can contact Precision Placement Machines (PPM) for parts and service. We use to use
Electronics Forum | Fri Apr 29 14:00:40 EDT 2011 | ppcbs
Our company is finishing up a design prototype for an easy to use re-balling fixture. 100% ball attach, and you can re-ball more than one BGA at a time. Initial investment will be in fixture cost, but you will be able to re-ball several chips in ar
Electronics Forum | Tue Apr 19 10:19:28 EDT 2011 | leemeyer
We currently have a job that uses press fit solderless pins. The pins are custom and only supplied in bulk packaging. I am looking for a machine that can orient the pins and present them to my insertion machine. Of course i need the pin to be present
Electronics Forum | Tue May 10 12:25:38 EDT 2011 | leemeyer
It does sound as if you may have an encoder problem. Have you cleaned the encoder glass ? A spec of grease or other matter on theis glass can cause problems. Be careful when cleaning because you do not want to break it. Clean the front of the encoder
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