Electronics Forum | Thu Jul 27 08:38:36 EDT 2000 | Wolfgang Busko
Hi Jason, a couple of questions: What�s the pitch? Did you change direction the board is going through the wave and what happend? How about the design abnormalities for those 4 pins, thermalreliefpads or whatever? We had problems with 2mm pitch and
Electronics Forum | Wed Jun 28 07:45:39 EDT 2000 | Wolfgang Busko
Hi Allan, I can�t help with literature on that topic but we have great success with solder thiefs to prevent bridging with 2mm pitch THT-connector. We added just blind pads of the same size at the end of each row similar to what you can do with SMD
Electronics Forum | Tue Jun 20 10:15:55 EDT 2000 | Neil Peaslee
I checked your account and I see that you use a couple of different computers to log into SMTnet. One at work and one at home, perhaps. One of the computer is not set up for cookies and unfortunately we lost track of your login information. (We try t
Electronics Forum | Mon Feb 21 22:36:19 EST 2000 | Dave F
Cedric: I know you said "5KE36CA." Motorola, Fairchild, and some others make a zener transient suppressor 1.5KExxCA. The CA suffix makes it bidirectional. Actually, Motorola is no longer in the business. On Semiconductor (www.onsemi.com) sells t
Electronics Forum | Mon Jan 15 11:07:33 EST 2001 | davef
The new format doesn't bother me. It seems less cluttered. The adverts do seem huge, but the old forum always had that white space on the right side. Maybe we gave up that white space to get bigger ads. It does seem faster. I wish they had retai
Electronics Forum | Mon Feb 26 09:36:08 EST 2001 | blnorman
ASTM E 443 is a test for sulfur by Oxygen Flask Combustion. Other instruments will detect sulfur (I assume a SEM with EDS capability will pick up the sulfur). We had an addition cure silicone potting compound inhibition problem last year that was t
Electronics Forum | Tue Feb 27 13:21:24 EST 2001 | kmorris
We've recently identified that one of our wavesolder machines has a high tin content. It should be 63% and is greater than 1% above that. We are adding pure tin to adjust the ratio back to 63%. I'm wondering what defects might be expected as the ti
Electronics Forum | Tue Mar 13 14:45:07 EST 2001 | kerryn
Hi Mike, I appreciate your views, but how does this relate to the original question? Roger asked "Wash how? Wash How often? amd PM? He didn't ask who. It seems that your response in a "yellow page" ad and not an answer to the question. At least Bi
Electronics Forum | Thu Mar 22 16:02:37 EST 2001 | dblsixes
In the end, we may have to go to our customer to see if we can get Class 3 relief ... We actually did an experiment by adding a ceramic cap to the top of the part, using a thermal paste to improve the thermal connection. It didn't do much for us ..
Electronics Forum | Wed Jun 27 15:21:28 EDT 2001 | H.Richter
Hello; Can anyone give me advise on the best way to manually align a 20"x20" stencil on a semi-automatic printer? We have a board with a 16 mil pitch QFP and have difficulty aligning the stencil. We have tried various alignment schemes on the pcb an
