Electronics Forum | Fri Oct 18 12:55:12 EDT 2002 | mmulgrew
We are currently experimenting on an 18 layer 2 oz. copper backplane. The spec is calling for 100% solder joint top to bottom. Any input greatly appreciated.
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.
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
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
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
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
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
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
Electronics Forum | Mon Jan 13 11:26:58 EST 2003 | russ
Could you provide the specific alloy info (percentage od each) OR provide the melting point of this alloy? Please also provide the component specs (pitch, ball diam.) And the pad size and design used on the board. Russ
Electronics Forum | Fri Feb 14 21:57:35 EST 2003 | caldon
Hello All- As per IPC SMEMA Specs the max gap distance should be .375" This standard can be downloaded from IPC's website at http://www.ipc.org/html/fsresources.htm This Doc has a fair amount of useful info. Best Regards, Cal
