Electronics Forum | Thu Sep 11 18:44:31 EDT 2008 | smt_guy
We have an Ionic Contamination Testing system but short of having a monitoring record for the chemical concentration. What we have is a monthly maintenance check of the concentration and annual check and calibration of the chemicals. We seldom use th
Electronics Forum | Thu Sep 11 19:19:07 EDT 2008 | Mike Konrad
Most ionic contamination testers prompt the operator for the current concentration at the start of each cycle. The normal concentration is 25% DI Water and 75% IPA. Although most machines ask for the current concentration, concentration adjustments
Electronics Forum | Wed Sep 17 12:06:58 EDT 2008 | wrongway
Don't forget repairing the boards all the special tips for the small parts sounds like you might be placing BGA may need a special machine just for reparing that. some places think they need x-ray for inspecting BGA. type of paste that you going to
Electronics Forum | Wed Sep 17 12:51:04 EDT 2008 | stepheniii
We got over 500,000 placements per month with two Mydatas for three consecutive months. And I want to say organized Fuji changeovers beat disorganized mydata changeovers. Even though Daxman is right that they can take a little longer to set up. In o
Electronics Forum | Wed Sep 17 21:27:30 EDT 2008 | dekhead
I'll put a vote on MyData, but you might have problems with the volume... If you're buying used on this better off buying from MyData, they have a tendency to buy up the decent stuff off the used market, and anything left noone really wants to deal w
Electronics Forum | Tue Sep 16 16:16:12 EDT 2008 | ck_the_flip
Yes, this scenario is fine. However, BGAs are a different story since the ball is the bulk of the solder joint. In this case, you MUST run a "hybrid profile". Look it up in the fine SMTNet archives (keyword: hybrid profile). I have "been there an
Electronics Forum | Wed Sep 17 12:37:57 EDT 2008 | stepheniii
Panapro can be set up for the centroid data in any order. You won't be able to load the centroid data straight into the machine though. At one time I used Unicam to program a mydata. Then we got a panasonic line. The panarep said we could configure
Electronics Forum | Fri Sep 19 10:20:43 EDT 2008 | stepheniii
You are making sense. And no you can't go from centroid data to a program at the machine automatically. You can type in the numbers if you want but the machine won't turn centroid into a placement program. Don't you have PanaPro? I thought there w
Electronics Forum | Tue Sep 16 16:41:27 EDT 2008 | ck_the_flip
Here are some guidelines that you can go by: http://smt.pennnet.com/display_article/260261/35/ARTCL/none/none/1/Choosing-a-Stencil/ http://www.emasiamag.com/article-669-stencildesignforleadfreesmtassembly-Asia.html My caveat is...I am merely actin
Electronics Forum | Tue Sep 16 15:47:05 EDT 2008 | ismir
Hello everyone! I'm a student of electrical engineering currently working on a thesis for my BSc degree. It will be about post reflow AOIs and AXIs, and I'd kindly like to ask you for some help with it. I would like to know if there are any standar
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