Electronics Forum | Mon Nov 15 12:27:33 EST 1999 | Wolfgang Busko
Hello everybody, engeneering came up with following problem: Considering worst case the get a temperature at a component (Resistor 0805) of 109�C and 99�C at the solderjoints. As a rule of thump I said that the max. suitable temperature for the solde
Electronics Forum | Tue Nov 16 11:02:46 EST 1999 | Dave F
Wolfgang: A snipet of information that maybe more on track that the previous babbling: The temperature limit for FR4 is 130�C according to UL746(?) Good luck Dave F
Electronics Forum | Mon Nov 15 21:32:31 EST 1999 | Dave F
Wolfgang: Sounds like gluteus maximus protection time. 1 "Maximum suitable temperature for the solder joint should be half the liquidous temperature" is a good rule of thumb. Where it came from, I don�t know. One place I�ve seen it repeated is: H
Electronics Forum | Fri Aug 27 12:28:34 EDT 2010 | patrickbruneel
Under certain circumstances, Toyota says, solder connections may develop a crack that creates unpredictable behavior in the circuit. Look here: http://www.thecarconnection.com/marty-blog/1048692_toyota-recalls-1-1-mi
Electronics Forum | Wed Sep 13 12:01:26 EDT 2000 | Wolfgang Busko
Hi Charly, short question, short answer: excessive mechanical influence often in combination with bad solderjoint itself. For bad solderjoints there are many many reasons, process and material related. Are there any special circumstances that made y
Electronics Forum | Thu Jun 25 16:07:44 EDT 1998 | G. Hamblett
Looking for articles/data comparing the quality/reliability of mass reflowed SMT solderjoints versus hand soldered SMT solderjoints.
Electronics Forum | Wed Jan 16 08:58:43 EST 2008 | Adam
Hi If I have an assembly where the solder joints are suffering from blowholes and Pinholes. Could these solderjoints be reworked/touched up to form a reliable/acceptable solderjoints ?
Electronics Forum | Fri Jan 30 06:20:43 EST 2009 | milas
Hi Does anyone have any thoughts on Lead Free solderjoints reliability in a high vacuum environment ?
Electronics Forum | Wed Jul 30 16:57:23 EDT 2008 | stevek
Folks, I'm looking for some specs for the maximum bend or strain that should be put on a PWB. Not looking at the solderjoints. I'm concerned with localized bending of the fab and what might be a reasonable limit for that bending. I've measured 105
Electronics Forum | Thu Jul 07 18:03:27 EDT 2005 | russ
Sarag, FYI tombstoning is a functional failure. Tombstoning is where one end of the component is not soldered and is in the air above the board/solderjoint surface. You may be thinking of billboarding (part on its side with both ends soldered down)
