Electronics Forum: spacings (Page 5 of 119)

Re: Automated Labeling -vs Direct Part Marking

Electronics Forum | Fri Oct 29 10:57:45 EDT 1999 | JohnJ

We considered direct marking already John. It's not very practical for us to do that. We need to put labels on components as well as boards. A laser or inkjet would cause us to have to change too many things in our processes. We'd still need to do la

Clearence of solder resist from QFP Leads

Electronics Forum | Fri Jan 09 09:43:48 EST 2009 | boardhouse

Hi Simon, The main reason that it would probably be removed would be do to lack of clearance for a soldermask dam from pad to pad. typically if the clearance from pad to pad is under .008 the solder mask dam would be removed. Min recomended dam siz

How to measure dimensions in gc prevue?

Electronics Forum | Wed Aug 05 08:16:34 EDT 2015 | emeto

Hi, that's how it works: 1. Zoom to the object you want to start with. 2. Click S to center to the object. Depending on the zoom you can center to pad, line, corner.... 3. Click Z(this zeroes your Relative coordinates). If you click Ctrl+z(this ze

IPC Class 3 Annular Ring and Fine Pitch BGA Challenges

Electronics Forum | Mon Oct 09 06:16:31 EDT 2017 | jamesbarnhart

I think you needed an IPC Class 3 annular ring because for very dense designs, the smaller the annular ring the better, as less space is taken by the pad or via and more space can be dedicated to routing the traces in highly populated areas of the bo

bridging between 2 pads

Electronics Forum | Wed Nov 07 07:31:20 EST 2001 | steven

what is ideal or minimun spacing in between 2 pads to avoid bridging? thanks

Forum Postings

Electronics Forum | Fri Oct 18 14:51:31 EDT 2002 | Pete C

Yep, "operator head space". Thx. Brian

Panasert software

Electronics Forum | Thu Jun 17 11:46:33 EDT 2004 | Claude_Couture

Please define "worst case for feeder sizes". Quantity? Arrangement? wasted feeder space?

Solder balls

Electronics Forum | Thu Jul 22 16:06:07 EDT 2004 | russ

What is your pad dimensions/spacing at components you are having trouble with

IPC Requirements for pad spacing reduction

Electronics Forum | Tue Nov 23 11:25:18 EST 2004 | davef

Please send pix. We don't understand the issue.

Board Spacing

Electronics Forum | Wed Apr 20 12:34:25 EDT 2005 | bobsavenger

Thanks a bunch. That is what I was needing to know. Bob


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