Electronics Forum | Sun Oct 09 16:57:30 EDT 2016 | davef
IPC 2222A Sectional Design Standard for Rigid Organic Printed Boards, 5.3 Design Requirements for Printed Board Assembly
Electronics Forum | Tue Nov 01 12:28:36 EDT 2016 | comatose
It depends. Are you hand breaking them, rotary knife or linear knife? Hand break you want to be about 5mm (and it isn't a great practice even then) with a rotart knife you want to keep parts probably 3mm, especially capacitors. With a linear knife we
Electronics Forum | Sat Nov 05 20:23:11 EDT 2016 | sarason
Close but not to close, would have to be the spec. Or depends on your separating technology. Prerouted boards on a panel, you could go right up to the edge. V-grove you will need more distance, maybe 2mm's or more. The distance from the panel edge to
Electronics Forum | Sun Oct 27 07:56:58 EST 2002 | wongmanchung
Does any expert here know the specification of board deflection when we mounting component by pick and place machine? That is when the nozzle place the chip on the pcb, the board will have some deflection. And are there any requirment that we need t
Electronics Forum | Wed Nov 06 12:52:28 EST 2002 | charlie
Check out one of the board suppport that are currently available: Grid-Lok, Formflex and others. These systems are available for many models of printers and P&P. They automatically set up to any board, first or second side, and provide excellent su
Electronics Forum | Mon Oct 28 07:07:39 EST 2002 | cyber_wolf
It has been my experience that when all conditions are as they are supposed to be there should be zero or very little deflection. When you start placing components with pick and place equipment that does not have a Z pressure sense, you run the possi
Electronics Forum | Sun Feb 23 14:51:02 EST 2003 | davef
Without being clear on whether you're talking about: * Standard air knives at the back-end of your in-line cleaner ... OR * Hand held or similar nozzle. Standard air knives: This causes no problem with ESD because the relative humidity is so high t
Electronics Forum | Wed Oct 30 01:23:22 EST 2002 | jasper
It has been my experience that when all > conditions are as they are supposed to be there > should be zero or very little deflection. When > you start placing components with pick and place > equipment that does not have a Z pressure sense, > yo
Electronics Forum | Fri Dec 23 06:09:04 EST 2005 | Slaine
good report showing lots of sections and compairng differnet pcb finishes http://www.smartgroup.org/experience/experience%20report%202005.pdf
Electronics Forum | Fri Dec 23 23:29:17 EST 2005 | azbvc
Slaine, thank you for sharing..
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