Electronics Forum | Wed Sep 13 15:51:43 EDT 2000 | Charlie
I'm looking for practical proceedures to do the following: How to qualify epoxy in our process. One supplier vs. another. How to qualify wave solder and flux in our process. One supplier vs. another. Any and all advice is welcome.
Electronics Forum | Wed Nov 12 16:25:36 EST 2003 | davef
I was reading something on the Maori and whale watching the other day. Sounds beautiful. Congrats on the new job, mate. Please drink an Australis Benediction for me.
Electronics Forum | Wed Nov 12 15:48:36 EST 2003 | johnwnz
Thanks for the info Dave, the link provides very interesting reading! btw, JohnW and JohnWnz are one and the same, I've moved down to Sunny New Zealand to ply my trade / skills down here and have soem fun in the sun while I'm at it. A move I'd total
Electronics Forum | Tue Nov 11 16:07:52 EST 2003 | johnwnz
Folks, has anyone heard fo any problems with RF cards related to solder paste selection. Currently runnign with std SnPb paste but want to move to 2% silver paste. Was asked if this could cause any issues in term's of RF capability or interferance t
Electronics Forum | Wed Nov 12 08:35:16 EST 2003 | davef
2% should have no effect [recognizing that some RF deign implementations are squirrellyand they don't count]. We still use 2% dating back to the old days when the gray beards [at that time] felt that the silver improved skin effect [a tendency for a
Electronics Forum | Wed Aug 16 05:13:41 EDT 2000 | Charles S
Are you running high volume. If yes then what you propose may be relevant. If however you run low volume - lots of changeovers then your wastage/transfer will be equal if not greater than the amount put on the boards. Enclosed systems like DEK Proflo
Electronics Forum | Wed Aug 16 03:04:50 EDT 2000 | rberry
Hi Does anyone have a tried and tested method of estimating the mass of solder paste that will be used for an SMD assembly given only the type and quantity of components used. (As well as type of paste, stencil thickness etc) In other words is there
Electronics Forum | Wed Aug 16 05:20:29 EDT 2000 | Wolfgang Busko
Richard, take a given volume and weigh it. For your parts you have already determined the aperture opening and stencil thickness and that gives you the volume for each lead of the component. This way you should be able to determine the amount of pas
Electronics Forum | Fri Aug 18 05:43:51 EDT 2000 | Richard Berry
Thanks Wolfgang / Charles Have tried method suggested by Wolfgang on one product, and seem to be a bit over (perhaps density calculation was a bit out). Also, the volume of paste deposited must be less than the voume of the apetures on the stencil b
Electronics Forum | Mon Mar 27 15:56:12 EDT 2017 | padawanlinuxero
Just 2 cents, lead free flux residue is no clean?, how about leaded flux? how much flux residue it leaves on both types? is there a clean up procedure after wave solder? or is there a wave solder process?
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