Electronics Forum | Fri Jul 01 04:15:58 EDT 2005 | pci
Hello I am looking for a best solution to make a prototype of Single sided and double sided board. Using Orcad. The line / track width are 8/8 mil. the hole sizes are 0.6 0.8 , 1.2 and 2.6 mm. The size will be approx. 175 x 130mm. Could you please
Electronics Forum | Wed Apr 26 09:20:43 EDT 2006 | PWH
I've seen failures like this with multilayer parts that seem to be affected by high activity flux during SMT (water soluable in this process). High, high failure rate in our case. I'm not sure what was going on with our parts but we thought maybe t
Electronics Forum | Wed Aug 01 12:16:58 EDT 2007 | realchunks
So how do you think they plate the vias to the components? This was where the cost came in when trying this. Now how do you keep multi-layers together without putting undo pressure on you components? Thru-hole components still would require solder
Electronics Forum | Mon Apr 05 17:47:21 EDT 2010 | boardhouse
Hi Deni, X-ray will not be able to see through Power and Grn planes. Your only way to find out is: 1) ask your board supplier to supply stack up used. 2) surface grind layer by layer to validate if it is correct stack up. What is making you think
Electronics Forum | Mon Jun 13 09:25:58 EDT 2011 | milroy
Hi I have seen some of our multilayer PCBs are having delamination issues even after baking them in the ovens. Does anybody faced this issue before? The problem occured after reflow process and wave solder process as well. The temp profiles are well
Electronics Forum | Wed Aug 22 12:48:47 EDT 2012 | tpatrickwalsh
They are using the method where scored boards are separated using a rotating wheel / blade. I realize this is not the best process, however these capacitors are more than 10 mm from the edge of the board. From some reading online I think that means
Electronics Forum | Wed Aug 22 13:18:50 EDT 2012 | rway
I also forgot to mention that the pizza-slicers you are using can get out of spec and may need periodic calibration. By cutting too close, these can over-stress your pcbs as well. Do you only see this problem at one cutter or does it matter? Also,
Electronics Forum | Fri Jun 20 07:31:34 EDT 2014 | mdavister
I'm not positive, but it looks like it could be a multilayer chip capacitor with the end metalization on the long side. They do exist: http://www.mouser.com/ProductDetail/AVX/0612YC105KAT2A/?qs=sGAEpiMZZMukHu%252bjC5l7YbS7Gp8EQB5AtLAgTHK6PsA%3d
Electronics Forum | Wed Jun 21 09:22:29 EDT 2017 | emeto
Hello, I have an assembly that I am considering to run in a regular process(SMT, Wave)and afterwords solder 22 electrolytic capacitors. Due to the multi-layer board it is not an easy task, so I was wondering if you guys know any trick how to do that
Electronics Forum | Wed Jun 21 11:18:57 EDT 2017 | capse
Hello, > > I have an assembly that I am > considering to run in a regular process(SMT, > Wave)and afterwords solder 22 electrolytic > capacitors. Due to the multi-layer board it is > not an easy task, so I was wondering if you guys > know any t
