Electronics Forum | Fri Jul 30 14:16:11 EDT 2004 | C.W
For VIA In PAD design, what's the difference between a thru vias and a blind via? thanks' chester
Electronics Forum | Fri Jul 30 14:21:36 EDT 2004 | C.W
what's the difference between a thru vias and a blind via?
Electronics Forum | Mon Aug 02 11:49:02 EDT 2004 | jbabson1
Blind vias are just that. They do not show on the surface sides of the pwb.
Electronics Forum | Fri Jul 30 16:41:14 EDT 2004 | Dave
Consider a 6 layer board. The Through via gets drilled from top layer to bottom layer. All 6 layers has the hole drilled in it. A blind via is a via that does not got through the entire 6 layers. It would go from layer 1 to layer 2. or layer 6 to lay
Electronics Forum | Sat Jul 31 17:27:50 EDT 2004 | C.W
thanks! So, why via in pad design is implemented? what's the advantages of it?
Electronics Forum | Fri Jul 30 16:12:12 EDT 2004 | davef
Search for "SMT Terms and Definitions" in the "Library & Bookstore" tab in the light blue area on the left of your screen.
Electronics Forum | Mon Aug 02 13:46:10 EDT 2004 | Bob R.
Via in pad lets your layout guy run traces on inner layers so there's more more area available on the outer layers for placing parts, test point, etc. There are also electrical advantages due to shortening paths, but I'm just a simple mechanical eng
Electronics Forum | Thu Feb 15 12:32:14 EST 2007 | Eric D
one of my customer areworried about the flux risidue in the blind vias, or if the plug the vias and there is air trapped the plug will blow during our process. Appreciate for your response
Electronics Forum | Thu Feb 15 13:49:10 EST 2007 | russ
only plug one side, you can definitely blow out during reflow process with a sealed via/ it is impossible for flux to be trapped in a blind via. Russ
Electronics Forum | Tue Feb 20 09:47:20 EST 2007 | russ
thank you very much Dave! I really appreciate the feedback. I brainlocked on soldering assembly process. Russ
