Electronics Forum | Tue Aug 06 08:54:21 EDT 2002 | mike
I have two basic questions: 1. We have a number of small convection ovens and want to modify some of these for baking out parts when needed. We have tried pumping nitrogen into these but I still run between 35 and 50 RH. Has anyone tried converting a
Electronics Forum | Wed Aug 14 11:55:31 EDT 2002 | ksfacinelli
One thing we did for our oven is hook it up to the compressed air system in the factory and bled in a small volume of air to create a positive pressure in the oven. The air is clean (non-oiled) and comes off the dryer. We can attain 5% RH. Remembe
Electronics Forum | Wed Aug 14 13:54:54 EDT 2002 | DenM
Larry, You can try one of two approaches, a bake above 100C will drive off moisture or use a vacuum bake. The vacuum bake process is slow since there is less/no air to conduct the heat. In the hybrid industry the standard vacuum bake was 16 hours at
Electronics Forum | Wed Aug 14 16:30:55 EDT 2002 | sleech
Dan: Until I got deep into development of a vacuum assisted moisture removal process, I always thought that the bake process would be saddled by the lack of atmosphere in the chamber. I later learned that the conduction of temperature at reduced atm
Electronics Forum | Tue Aug 06 08:55:07 EDT 2002 | Brandon
How do you calculate downtime of an SMT Line with 5 machines (1 Printer, 3 Pick and Place and 1 Oven)? Let's say that my stencil printer is down, since it is the beginning of my process my whole line is down. But if my 1st pick and place machine is
Electronics Forum | Sat Aug 17 07:48:43 EDT 2002 | bentzen
Hi Brandon. You should always try to optimize / "balance" your line in a way so the machine with the shortest time per placement is your bottleneck. The other machines in the line should then have a 10 - 20 sec sorter cycle time, to be able to cope
Electronics Forum | Tue Aug 06 17:14:33 EDT 2002 | melo_guy
I thought this would be a good place to post to get input from the "trenches" as to what is going to be the next consumer fad? It seems like the market is in need of something new to instigate future consumption. I work for an electronic component
Electronics Forum | Wed Aug 07 18:53:20 EDT 2002 | melo_guy
I dont know what kind of volume you use in crystals, but my company manufactures crystals and oscillators, and if the order is over 1000pcs we'll put it on t/r if that what u request. If we dont have any t/r components in stock, well put them on t/r
Electronics Forum | Tue Aug 13 13:31:54 EDT 2002 | neil
Dave, I think we may have been under pressure to do two things simultaneously when the web email system was built. Obviously letting the expiration date on the Geary's pass by was not an option but the web email still had to get done and I guess I ov
Electronics Forum | Fri Aug 09 11:58:52 EDT 2002 | sam_b
Just started doing BGA rework. After the removal of the "old" component and after site cleaning/component reballing I am ready to install the component on the PCB. It is recommended to apply flux or paste to the board/component. I would appreciate m
