Electronics Forum | Tue Jul 19 09:18:14 EDT 2011 | davef
Could this be an opportunity to explore the use of cartridge-type paste dispensers? Or maybe a reason to keep working over the weekend. * Re-Storing & Re-Using “Used” Solder Paste. Though not a recommended practice, used solder paste from the stenci
Electronics Forum | Thu Mar 22 10:07:48 EDT 2012 | hussman
We chose the MPM over the DEK. We did real world comparison in our factory with both machines almost side by side last year. MPMs offer a real windows based software that basically takes the operator out of the equation. Besides the basic screen p
Electronics Forum | Wed Feb 09 16:09:06 EST 2000 | Doug
Does anyone have any ideas on setting up a parts library/database on an SMT line? We would like to identify a particular part by it's package style, instead of by the customer's part number, in order to reduce the amount of entries in the library.
Electronics Forum | Tue Dec 05 19:15:41 EST 2000 | Michael Parker
Kel- My first impulse is to tell you to go ahead and try it your way. We all need to learn from our mistakes to find the right way. What you are proposing is called a "smoke" test. As long as you can keep the smoke inside the device, in your case th
Electronics Forum | Wed Oct 25 10:11:09 EDT 2000 | Wolfgang Busko
Paddesign, aperture size and stencil thickness determine the amount of solder for your joint. Once you have found suitable parameters you need to control the volume of your paste deposit which is influenced by printer settings, paste condition, stenc
Electronics Forum | Tue Oct 24 12:20:35 EDT 2000 | JohnW
Adam, Did some work on this a bit back via some good old Taguchi DOE and like Dave(the guru)F say's your component terminations is a big factor but I also foundthat the amount of flux you put on as well as the preheat's has an effect, generally we f
Electronics Forum | Wed Oct 18 10:02:04 EDT 2000 | Jason Nipper
I know it's a tin residue because we have a Cheme in house who had a spectrum analysis performed in an outside lab. The waves parameters were out of control long enough to effect a number of units that are, we�ll can I say substaincial in a fiscal s
Electronics Forum | Sat Sep 23 15:13:40 EDT 2000 | Francois Racine
Hi Sophia, I`m responsible of SMT line and we solved this problem with a complete automatic solder paste printer machine. In the past we had problem with off alignment and solder height too.... at that time we used a semi-auto printer machine and w
Electronics Forum | Wed Sep 06 11:18:52 EDT 2000 | Chris May
Randy, I have been with my present company about 14 months and my first and ongoing task is to improve 1st time yield rates at ATE. Upon examination of the failures (14 months ago)there were cases of IC legs being physically wider than the pads on
Electronics Forum | Wed Aug 30 16:00:42 EDT 2000 | Dave F
Russells: You can mix the two solders you mentioned, assuming by "96s" you meant "96Sn / 4Pb". If you heat the two tin / lead alloys to a liquid state, you�ll form a tin / lead solution with properties different from either of the two solders. The
