Electronics Forum | Wed Jul 17 02:32:13 EDT 2002 | computer
Hi, Anybody with a solution on solder balls on gold pad. I have tried the following a) Check cleanliness of solder paste printing area b) Clean stencils on 1 clean per 2 prints c) Use N2 on the reflow oven. Any other methods...
Electronics Forum | Tue Aug 20 18:20:49 EDT 2002 | davef
Not more than 5 seconds. Iron tip temperature / solder alloy / flux composition / pad solderability protection / component termination solderability protection / cleanliness of the soldering iron tip / board design / ladeda
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 | Thu Dec 12 11:47:59 EST 2002 | MA/NY DDave
Hi Excellent. You are right that many areas due to ESD or cleanliness requirements would not be appropriate for Walkmans, personal CD players and such. YiE, MA/NY DDave
