Electronics Forum | Thu Nov 01 15:14:47 EST 2001 | jacob
Hello, I am trying to convince our design engineer to use micro-vias when he has to locate them in the middle of a pad. I heard of the use of micro-vias on this site and was wondering if someone could lead me in the direction of somewhere
Electronics Forum | Thu Jul 06 16:13:28 EDT 2017 | barryg
Hello everyone, I was curious if anyone knows what criteria there is for layer to layer registration. I have looked at ipc-600 and 601 and have not found anything or am missing something. We had a small qty. of pcbs sent to a customer and some inner
Electronics Forum | Fri Nov 23 15:46:06 EST 2007 | mika
Question: We have an issue right know on a prototype batch with via in the pad on an very small pcb 50x50mm (in a panel of course). The designer has no room to move the vias as they said. The pcb is to packed with components also 8-layers. It is also
Electronics Forum | Fri Sep 28 07:42:07 EDT 2007 | zanolli
We have the need to verify that proper intermetallic layer between a 100% Sn plated contact and the solder joint is being formed. Never having done this before: Is there any specifications, etc. that we can use as acceptability criteria?
Electronics Forum | Fri Nov 03 02:32:56 EST 2006 | shivam
HI ALL, can anybody clear me what is via tenting and via pluging?? second one, if i use via in pad for an.5mm bga what care i should taken, what should be the soldermask open in top and innerlayers for via?how it will directly connect to top layer
Electronics Forum | Mon Feb 26 20:02:42 EST 2001 | davef
First, I don�t understand why your board fabricator can�t do a good job plugging your vias. Additionally, when you consider that they forgot to plug the first batch of boards, it makes me wonder if they are desirable as a supplier. Generally, we us
Electronics Forum | Sat Sep 14 01:34:19 EDT 2002 | Yngwie
I have the following questions on Via in Pad and want to understand each of them wrt : - complete Via in pad - partial encroachment - via partially in pad 1) What is the general feel for via in pad for upcoming designs? 2) What are the manufacturi
Electronics Forum | Tue Sep 17 00:40:39 EDT 2002 | yngwie
Hi all Experts, Desperately need your help on the following questions on Via in Pad and want to understand each of them wrt : - complete Via in pad - partial encroachment - via partially in pad 1) What is the general feel for via in pad for upcom
Electronics Forum | Sat Oct 12 05:40:05 EDT 2002 | Kenture
Hello All, I am having issued with insufficient solder due to via in pad. It is a 10 mils via and PCB is 70 mil thick. Six mils stencils was used since there are some 20 mils (No clean process). Any recommendation? Thank you.
Electronics Forum | Wed Mar 14 13:16:54 EDT 2007 | Shane
I have a customer that designed a fine pitch BGA into a board, and has put small vias in the middle of each pad on the PCB. Anyone have any ideas on how I can prevent the solder from the BGA from flowing through the vias and causing voids or no cont
