Electronics Forum: ionic (Page 6 of 42)

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Tue Dec 10 18:30:15 EST 2002 | MikeF

From personal experience, if the PWB vendor is cutting costs and doing their final rinse with tap water instead of DI you will get ionic contaminants left on the board. You might consider having CSL, or one of the other independent labs mentioned e

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Tue May 18 09:13:08 EDT 2004 | E Wolf

I'd like to follow the thread discussed on assembly. Hope Everyone is ok with that. I do run into the problem (have it now) that Ionic cleanliness is requested by print on a no-clean assembly. My intention is to use the no-clean to skip the aqueou

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Tue May 18 22:31:05 EDT 2004 | davef

Ionic cleanliness is pretty much meaningless, when discussing nc flux residues. If you do the good solder routine and measure the boards, you'll be in the out-house, because the water in your resistivity of solvent extract tester will turn the res o

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Mon Dec 09 11:34:55 EST 2002 | EW

I have seen the 6.5 ug/sqin and we have a fab house using 6.4, but I have no definitive answer for today. I see some interesting discussion here which I can also follow up on.

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Mon Dec 09 11:36:23 EST 2002 | gswable

Mike wrote : "Personally, I would not accept an incoming board that measures more than 0.5 �g/in of NaCl." Would your recommendation be valid for an IONOGRAPH tester ? Did you perform any reliability study that you can share that drove you your conc

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Tue Dec 10 13:36:49 EST 2002 | caldon

The EMPF has published a paper/ study on this topic, one of there better pieces of work. http://www.empf.org/html/empfset.htm www.empf.org Doccument number rroo13 Best regards, Cal

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Thu Dec 12 14:21:35 EST 2002 | gswable

Hi Mike Why is there a difference in readings on the Omega meter and the Ionograph ? Is it because that the IONOGRAPH is a closed loop extraction mechanism while the Omegameter is not ? Can you explain T

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Thu Dec 12 16:12:28 EST 2002 | MA/NY DDave

Hi I am wondering about your reply, Please continue. YiE, MA/NY DDave

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Mon May 10 19:36:08 EDT 2004 | gabriele

Many Tnks Dave, always helpful is your support. I am not familiar how to access EMPF, I have tried already last wk but I was able to read only the abstract of RR0013. Is the access for free or it necessary to be a registered SMTA member ? Regards G

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Mon May 10 19:44:15 EDT 2004 | davef

Hi Gabriele Has the snow melted up there, yet? No, SMTA membership, while good in its own right, is not a prerequiste to ordering documents from EMPF. Select "order technical publications" here: http://www.empf.org/html/empfset.htm


ionic searches for Companies, Equipment, Machines, Suppliers & Information