Electronics Forum | Mon Aug 21 11:28:30 EDT 2000 | James
Question: Do you run your pallets hot or cold thru the wave? I ask this because if you run your pallets cold the board will never preheat to the correct temp. thus, your flux won't activate properly. James
Electronics Forum | Mon Aug 21 15:57:28 EDT 2000 | Ron H
The board and pallet are at room temperature when they pass thru the flux, then are sent thru a pre-heat section, and lastly sent over the wave solder. The exposed portions of the board solder properly.
Electronics Forum | Tue Aug 22 16:50:14 EDT 2000 | Ron H
James, I'm a little curious about your wave solder process. Could you kindly discribe it and list the approximate associated temperatures? I think I'll fiddle with the spray flux idea. Thanks James and Wolfgang for your inputs. Ron
Electronics Forum | Fri Aug 18 20:42:02 EDT 2000 | KYUNG SAM PARK
Hi. Smtguys I need help. The delamination of smd (QFP) occured when we checked with the SEM. This device have been excursed smt process after baking for 24 hour (125��) in oven. Are there any other reasion in SMD delamination except humidit
Electronics Forum | Fri Aug 18 05:59:03 EDT 2000 | Gyver
Hello sirs, Would you kindly provide me the best way to erase the flux attached on the golden fingers? What we can do now is to use the pencil eraser to remove the flux. Thanks in advance. Gyver
Electronics Forum | Fri Sep 01 04:30:42 EDT 2000 | Gyver
Hello Dave, The gold fingers are on graphic cards. What did you mean by DI water? I need to know that very soon, thanks a lot! Sincerely, Gyver
Electronics Forum | Tue Sep 05 16:16:18 EDT 2000 | Dave F
Yeh, gold fingers are always on any kind of cards. I just can't figure-out why.
Electronics Forum | Fri Aug 18 05:47:22 EDT 2000 | Wolfgang Busko
About the status in Europe you can read this document. http://europa.eu.int/comm/environment/docum/00347_en.htm Around here are a lot of workshops, conferences, symposiums with a controversary tenor. It goes from "no problem " over "ridiculous" to
Electronics Forum | Thu Aug 17 16:12:48 EDT 2000 | John Maxwell
We are using a water wash paste for our boards which is leaving ionic contamination ( salts). In the presence of low humidity levels this creates the effect of a capacitor. Our product which is test instrumentation does not calibrate. I am lookin
Electronics Forum | Thu Aug 17 09:06:26 EDT 2000 | Chad
We are currnetly looking at switching form squeegee's to the Dek ProFlow head system. Just looking for feedback on the performance compared to squeegee's. Also here the ProFlow reduces the amount of waste of solder paste. Can anyone reflect on these
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