Electronics Forum | Thu May 18 10:25:18 EDT 2006 | slthomas
Perhaps a PhD should be able to recognize the difference between a typographical error and a spelling error. Even WE can see that one.
Electronics Forum | Fri Feb 09 09:23:12 EST 2007 | Adam
Hi Would anyone the what the solderjoint cleanliness requriements are, on an assembly which will eventually be operating in a vacuum environment ? Thanks in advance Adam
Electronics Forum | Fri Feb 09 12:28:16 EST 2007 | Snirk Prichards
Me thinks you is on to something. I like day way you tinks and would like to bring to honda plant.
Electronics Forum | Sat Jun 01 07:22:40 EDT 2019 | edhare
Just the opposite, reducing the standoff increases the shear strain range in temperature cycling, which lowers the number of cycles to failure.
Electronics Forum | Mon Jun 03 13:01:59 EDT 2019 | slthomas
Is there any chance that the boards were mechanically stressed (for instance, installed in a fixture) before, during, or after the testing? I'm just looking for other possible root causes.
Electronics Forum | Wed Mar 23 20:44:25 EST 2005 | pmd
Sounds like EA has way too much free time on his hands. How are you taking a reading. What instruments are you useing to get a reading. What are you looking for? Voids? Adhearsion? Contamination? Why would you need to know what it takes to break a co
Electronics Forum | Mon Mar 28 14:57:46 EST 2005 | chon
So far I've been working with a xtal. I've been placing this on a board and the part was falling from the board. We found residues on leads and notified vendor as contamination, after that 100% of our production has been verified with a perpendicular
Electronics Forum | Tue Mar 29 09:02:13 EST 2005 | Indy
chon, we do a similar kind of perpendicular test, but have not found any kind of specifications to determine if the force is good eoungh. Since you mentioned that 6 pound-inch was enough for your application, could you provide some insight on how
Electronics Forum | Tue Mar 29 09:54:20 EST 2005 | chon
Indy, Please refer to IPC-TM-650 TEST METHOD MANUAL Number 2.4.21.1, this is the closest written procedure I've found and used for this. I hope helps or if someone has any other input please advise. On more thing I have this file just let me know if
Electronics Forum | Thu Jan 29 00:12:39 EST 2009 | grayman
Hi Armando, I think you have to buy a bigger reflow let say 7 zones to get the correct profile. The reason you are getting that problem is due to short profile time. What is the size of your board? What is the composition of your solder paste? Ple
