Electronics Forum | Wed Apr 03 19:04:06 EST 2002 | steveo11
That's pretty apparent, isn't it? SMT is smaller, faster, lighter, better... Elkectronics are smaller, faster, better... See any correlation here? How do you write 5000 words on that?
Electronics Forum | Wed Mar 16 18:39:55 EST 2005 | KT
I am looking for the same. IPC 610D does mention about the solder fill based on the class (A,B,C). But, there is no exhaustive study that I have come across. Please let me know if you find any. KT
Electronics Forum | Thu May 04 12:20:55 EDT 2006 | Pee Wee
Dang it Chunks! Didn't even think of the intitials correlation - nice one. Maybe I'll stick with Pee Wee from here on out...
Electronics Forum | Thu Apr 09 06:28:11 EDT 2009 | qualityguy
We have different Solder mask 'gloss' and 'satin' the gloss has a surface energy =40 dynes. The test evidence to date is strong correlation between surface energy, mask type, HASS failure
Electronics Forum | Thu Jan 20 14:28:49 EST 2000 | Scott S. Snider
I ran this test back in '92 or '93 when Alpha was first pushing to change from Brookfield to Malcolm readings. The correlation between Malcolm readings to solder paste height is good. I could always look at the viscosity reading and know at least a d
Electronics Forum | Tue Mar 20 09:03:18 EST 2001 | moseschee
Hi, I'm looking for research/study done on solder shelf life by using accelerated aging process ( steam age or dry air oven bake at 150C & etc ) Perhaps you could help to advise correlation of all this acceleration test to actual solder shelf life
Electronics Forum | Mon May 10 09:51:47 EDT 2004 | davef
Yes These instruments are intended for process control. So, it's unrealistic to attempt to correlate readings between machines. Read the EMPF report that Cal recommends here in this thread: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID
Electronics Forum | Tue Aug 03 15:23:56 EDT 2004 | tberkey
thanks for your response. I have a couple of reasons for evaluating this. 1) We recently purchased an ionograph to replace an outdate Omega meter. Correlation is required and in discussing this with several people, most wondered why we checked if we
Electronics Forum | Fri Jan 20 08:55:31 EST 2006 | patrickbruneel
Steve, How do you measure the resistance is it by probing the surface? Concerning the alloy there is a straightforward linear correlation between the tin content and the electrical conductivity of the alloy. The higher the tin content in the alloy,
Electronics Forum | Sat Aug 21 02:08:00 EDT 2010 | isd_jwendell
I have noticed that the % metal content in the paste can also be directly correlated to solder balls (less metal, more balls). However, I also found differences between pastes from different manufacturers and the number of solder balls (identical boa
