Electronics Forum | Tue Jan 12 19:49:28 EST 1999 | Ross Berntson
| Hi Folks. Has any Process Engineer here done a complete evaluation or controlled experiment for VOC-FREE Flux? Our goal here at CEBUKid, Inc. is to implement a VOC-FREE process. We have all the necessary (OPTIFLUX) spray equipment, and we're cur
Electronics Forum | Thu May 30 10:59:41 EDT 2002 | Hussman69
Diamond/sqaure shapes are good for when you X-Ray the BGA as stated above. The only problem is if you you over print too much, you can get solder beading. I recommend round pads to avoid the beading and use X-Ray to make sure you reflow correctly.
Electronics Forum | Mon Jan 04 23:15:35 EST 1999 | Kris Ewen
Where I worked, we used 0.014" square aperatures (several mfgs. have proven the benefits of square & I've seen a better transfer efficiency myself). Some mfgs use smaller edge lengths & have had success. 0.005" thick stencils give better transfer e
Electronics Forum | Wed Aug 20 16:36:11 EDT 2003 | stefwitt
For the first time, I was asked to pay tax on a used machine. The machine comes from a reputable manufacturer and I do not doubt their integrity. I asked my accountant (who has many titles in front of his name) and asked for a tax exempt number and
Electronics Forum | Thu Sep 10 07:13:41 EDT 1998 | smd
| I have just been asked to do research into vibratory/belt feeders by my mangement. We are transistiioning into a more short run JIT environment for our captive products. My investigation has turned up two suppliers (USVibra, and Comtra Systems). D
Electronics Forum | Wed Aug 19 12:20:24 EDT 1998 | MARK J.
| Hi there, | I'm actually facing a lot of trouble with PCB's presenting up to 3mm of bow /twist at reception i.e. before assembly. The PCB size is 220 by 230mm. The boards are to be assembeled SMD double sides with 05.mm pitch on both sides. In orde
Electronics Forum | Thu Mar 15 16:23:38 EDT 2007 | grantp
Hi, If your doing a line, then your going to need more than the simple prototyping machines listed above in this thread. (Although they are cool ideas, and loved the toaster oven modification guy, and the other guy soldering ic's with it too!) We a
Electronics Forum | Tue Jul 18 09:29:54 EDT 2017 | svfeingold
That does sound like a great deal Tsvetan. Can you share any information about who/where exactly you purchased the machines, and which printer/reflow you have? I do have friends and colleagues in China that could ease the process if anything is comin
Electronics Forum | Tue Nov 13 16:54:29 EST 2007 | unisoft
Hi Try Unisoft (founded 1986) they are reasonibly priced and program your assembly machine from either gerber or CAD - 203-913-0782. The software you need is called ProntoPLACE ( http://www.unisoft-cim.com/pcbplace.htm ). Programs and optimizes P
Electronics Forum | Mon Dec 23 11:36:26 EST 2019 | tey422
I would suggest having both SMT lines next to each other rather than separate by tables, worst yet, another big machinery. You might not have the machines yet for those empty line#2 space, but you can use it as a temporary storage area until then. O
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