Electronics Forum | Mon Nov 05 13:19:45 EST 2007 | slthomas
Call me jaded, but this sounds suspiciously like the classic "our other supplier didn't have this problem" but the other supplier was hand soldering the headers, and finally requoted the job with that in mind so the customer moved on. Granted, ther
Electronics Forum | Thu Nov 08 00:01:57 EST 2007 | omidjuve
please download the picture from the link below . we have two picture . picture1 is the place of the 96 pin connector that we have problem with it and i should say that we use parallel & perpendicular direction for sending the board to the wave solde
Electronics Forum | Thu Nov 08 00:38:31 EST 2007 | omidjuve
please download the picture from the link below . we have two picture . picture1 is the place of the 96 pin connector that we have problem with it and i should say that we use parallel & perpendicular direction for sending the board to the wave solde
Electronics Forum | Thu Nov 08 08:44:22 EST 2007 | aj
Hi, I have just taken a look at the Connector Images. Is there a difference in pitch between both connectors ? From the photo it looks like the Annular Rings are oversized on Image #1 especially around the centre area ( this might be the image ).
Electronics Forum | Fri Nov 09 07:13:20 EST 2007 | hussman
You're joking rite? I mean the pitch between these two connectors is night and day. Of course you will get shorts on the 96 pin connector because your leads are right on top of each other. Now, what to do about it: You took a picture of the top o
Electronics Forum | Wed Nov 14 13:05:40 EST 2007 | rgduval
I had one project with micro-vias in 0805 and larger pads, with no issues. But my most recent project had vias that were larger than the 0402 pads that the via was in. To the point that for a number of the lands, there was no visible pads (a couple
Electronics Forum | Wed Nov 14 14:44:10 EST 2007 | grantp
Hi, Those via's sure do sound large, and I think the designer must have made a mistake in the PCB design do you think? From looking at our PCB designs, if we moved to via in pad, it would really reduce the size of the PCB, so this is an important i
Electronics Forum | Tue Nov 20 12:31:12 EST 2007 | kelz
In my past experience, having via's under or attached to SMD lands produces risk. Solder will not consistently wick the same if it is being drawn into a via. This has also caused issues from solder wetting through the via to the other side causing a
Electronics Forum | Wed Nov 21 15:02:46 EST 2007 | jlawson
From info I have been told from design standpoint, via in pads helps with managing EMC issues with working design, in particular for high speed digital/dense populated type PCB's. We had a manufacturing customer that had very low yield because of th
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
winsouce.jpg)