Electronics Forum | Thu Aug 23 15:38:58 EDT 2001 | mparker
Bingo - the mylar is the problem. Ask the fab vendor what storage and humidity controls they use on the photo tools. The films can changed geometry from day to day depending on the ambient environment. What controls are used during production? The ra
Electronics Forum | Thu Aug 23 16:10:29 EDT 2001 | slthomas
Standard ESD bags aren't a vapor barrier, though, are they? Maybe you can get them spec'd that way, I dunno. You might have to get poly/foil bags and heat seal 'em. Fill 'em with nitrogen first, then suck most of it back out just for insurance. Don
Electronics Forum | Tue Oct 16 17:18:25 EDT 2001 | lileubie
Hello Chua, Welcome to the world of SMT. You found this site, so you're already on track to learning about SMT. You can check out SMTnet's library as well as SMTA's (Surface Mount Technology Association) located at http://www.smta.org. Check that
Electronics Forum | Fri Nov 02 08:30:40 EST 2001 | fmonette
For double-side reflow boards, take note that if you have moisture-sensitive components on the first side, you will need to track their remaining floor life up to the final reflow. This is because the reflow process is too fast to effectively remove
Electronics Forum | Mon May 13 10:37:56 EDT 2002 | fmonette
The other important issue relates to moisture sensitive devices (MSD). If you have MSDs on the first side, you need to track the remaining floor life of the components on the partially assembled boards between the first and second reflow. Contrary to
Electronics Forum | Thu May 09 10:11:23 EDT 2002 | dougt
I see some of the pick and place manufactures talking about how their machines (software) can help you control your inventory and keep track of where your SMT devices are. Is this really being achieved? Are the machines talking to the stock room /
Electronics Forum | Mon May 13 10:16:53 EDT 2002 | pjc
After bar-coding or manual data entry the data is in the Mydata database. The data is not stored in the feeder but in the database. The database links the component data to a serialized feeder and to a PCB s/n or production batch code. The machine so
Electronics Forum | Mon Jul 22 11:10:05 EDT 2002 | cyber_wolf
Does anyone have any recommendations on how to track feeder maintenance on fuji CP feeders in a contract shop ? We are constantly setting up and tearing down feeders. Some feeders may be getting picked out of way more than others. How does one keep f
Electronics Forum | Wed Aug 21 17:24:23 EDT 2002 | EW
I am running capability evaluations on Dek printers with Cyber and LSM measurements. I spoke with "Phil" last year, but no standard method has been universally adopted. He had some good suggestions. We are currently selecting our own criteria and
Electronics Forum | Tue Sep 17 18:39:49 EDT 2002 | dragonslayr
yea yea yea - another voice from the chorus weighing in- I think you are on the right track here- I can imagine some of your difficulties with co-registration with other sites. And what of the current users? do we all need to register to continue? w
