Electronics Forum | Mon Mar 08 19:41:31 EST 2004 | Ken
Robert, what you have provided is not a "profile". It is a "recipe" or "job". I have 4 BTU VIP98's. I have hundreds of recipes...Your temps look similar to mine....but what does that have to do with the "thermal profile" as experienced by the asse
Electronics Forum | Wed Mar 31 09:05:36 EST 2004 | russ
That would be one BIG spreadsheet, there are a lot of mfg with a lot of components for each one. As you know when going to the datasheetlocator you notice the huge listing of suppliers (500+) each one of them probbaly has anywhere from 1 type of co
Electronics Forum | Fri Mar 26 10:23:55 EST 2004 | Mike Konrad
Patrick, When you say "no-residue" what exactly do you mean? Is there truely "no-residue" or is it "no visible residue"? What type of ionic contamination results have you experienced? If you take a bare board that measures 0.0 NaCl and reflow it
Electronics Forum | Wed Mar 24 20:10:06 EST 2004 | Ken
IF you open up your TV, cd player or color printer you will see RA / RMA flux ON EVERYTHING! The waxy binder protects the halogenated compounds from becoming active with atmospheric moisture. Self healing is a good way to look at it. However, OA is
Electronics Forum | Fri Apr 02 15:41:38 EST 2004 | azdback
You may also want to start on the component library. Hypotetically speaking, the GSM shows the component as follows in the component library: One lead to the right, 3 leads to the left. This is the feeder default orientaion and it will be 0 degrees.
Electronics Forum | Thu Apr 01 12:31:39 EST 2004 | russ
one more thought on this, When these boards are built new do we not have solder paste on the ground pad and then reflow? Has this caused any misregistration for you? I am assuming that you are not pasting the leads with the ground pad correct? I
Electronics Forum | Mon Apr 12 19:22:54 EDT 2004 | russ
So if I get this right, your customer wants you to run this product as pb free even though it is not. In order to run this as pb free you need to run pb free paste. If you use 63/37 paste at the higher temps I believe that in addition to the compon
Electronics Forum | Wed Apr 21 17:27:27 EDT 2004 | russ
We always use the regular production reflow profile when we use this method. Since you don't want to do that, All that is required is to ramp the part up to temp to get the balls to melt. If you don't exceed 2C per sec. in a ramp you will be fine.
Electronics Forum | Wed Apr 21 21:27:11 EDT 2004 | davef
Dreamy "Ball rolling"? Are you a bowler? My nephew does the audio for the ESPN2 production of the professional bowling tour. Search the fine SMTnet Archives for discussion on assessing cleaning machines. For instance: http://www.smtnet.com/forum
Electronics Forum | Wed Apr 28 17:41:44 EDT 2004 | longpham246
Hello! We placed quite a few of 0402 with our CP3 using 0.7mm nozzle with the same feeder as you had. Pick up can be adjust and calibrated, but that is not the problem, I agreed with you on that part. The trick is you have adjust and play around wi
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