Electronics Forum | Mon Jun 20 04:21:04 EDT 2005 | alex
What is the ideal component edge to board scored edge clearance?
Electronics Forum | Mon Oct 13 14:16:58 EDT 2003 | Brad
Cal, Thanks for the info!
Electronics Forum | Thu Oct 02 10:55:37 EDT 2003 | caldon
Brad- The Spec can be downloaded free from IPC at http://www.smema.org/smema1.2.pdf (or IPC.org search for SMEMA Standards). As per Conveyor edge clearance should be .187" or 4.7mm. Regards, Cal Communications Test Design, Inc. www.ctdi.com
Electronics Forum | Wed Oct 01 23:40:38 EDT 2003 | bradlanger
I was wondering if anybody could tell me what a good clearance would be for board designs to allow for the use of inline equipment? My company currently runs a batch line but I want to make sure we are designing properly for inline if the need arises
Electronics Forum | Mon Jun 20 09:12:55 EDT 2005 | davef
There's no easy answer. It depends on: * Thickness and size of the PCB in the array. * Means of separation. * Type of component. SMT components are more sensitive to the forces that need to be applied to separate the PCB. * Type SMT device. Ceram
Electronics Forum | Wed Apr 09 14:50:03 EDT 2008 | bradlanger
We use a FKN pizza cutter and found that even with 5mm clearance and the proper orientation of the part larger ceramic capacitors 1812, 1210 would still stress fracture. We have successfully fixed stress fracture problems by adding routed relief slot
Electronics Forum | Thu Mar 23 14:17:47 EST 2000 | Finepitch Services
Stuart, My suggestion is a DFM meeting (most of the process people dream about a meeting like this, and luckily, I've been to a few) with: - project manager (if there's one) - customer service rep (annual volume, lot size, product life) - smt proce
Electronics Forum | Thu Mar 23 14:17:47 EST 2000 | Finepitch Services
Stuart, My suggestion is a DFM meeting (most of the process people dream about a meeting like this, and luckily, I've been to a few) with: - project manager (if there's one) - customer service rep (annual volume, lot size, product life) - smt proce
Electronics Forum | Wed May 03 11:17:25 EDT 2006 | aj
Guys, What DFM is standard for Minimum Edge Clearance on a PCB for Fiducials and components? Any advice appreciated. aj...
Electronics Forum | Wed May 03 15:17:38 EDT 2006 | russ
SMEMA standards are 5mm edge clearance
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