Electronics Forum | Tue Feb 14 09:10:43 EST 2017 | davef
Assuming the traces run parallel and perpendicular to each other, I'd choose one direction the traces run as "x" and the other direction for "y." Then I'd pick a unique identifier on the board to insure proper orientation. Next, I'd measure warp and
Electronics Forum | Mon Feb 13 23:05:02 EST 2017 | swestheimer
I have been asked a very good question but have not been able to find a good answer. IPC for both PCB and PCBA refer to the X & Y dimensions to measure warp and twist but how would you determine the warp and twist for a round PCB or PCBA?
Electronics Forum | Thu Mar 03 16:33:24 EST 2005 | pjc
Revision D has over 730 new and updated illustrations of acceptability criteria and has been critically reviewed for clarity and accuracy. The document synchronizes to the requirements expressed in other industry consensus documents and is used with
Electronics Forum | Thu Mar 03 16:41:11 EST 2005 | davef
According to an on-line posting ... SMTA On-line Presentation Comparing Industry Standard Revisions March 9: IPC-A-610 with Regards to Lead-free Technology There have been extensive and significant changes to the industry standard IPC-A-610 with th
Electronics Forum | Thu Mar 03 11:00:04 EST 2005 | PeteP
In a nutshell, what are the Rev D changes to the standards? What re-certification requirements are in place?
Electronics Forum | Wed May 20 17:56:51 EDT 2009 | dyoungquist
I have attached a pdf showing the dimensions for the QFN we placed. First, The pins on the part are not only on the bottom side but also wrap around to come up each of the 4 sides of the part as shown in the side view in the attached pdf. This i
Electronics Forum | Thu Feb 22 10:32:25 EST 2001 | CAL
SCOTT- We do solderability testing for the electronics industry using a Multicore and Kester Wetting Balance testers. The standards we test to is IPC J-STD 002 for components and J-STD 003 for PCBs. There is also a system called SERA we co-developed
Electronics Forum | Tue Nov 11 17:35:08 EST 2008 | davef
SM-840, is a material qualification document only, with all the test requirements applicable only to a defined test coupon, not to production boards. So, it's useless for what you're trying to accomplish. As assemblers use A-610 - Acceptability Of E
Electronics Forum | Mon Jul 24 07:18:51 EDT 2017 | jamesbarnhart
IPC has updated assembly standards for IPC A-610 and IPC JSTD-001 making them easier to use and adding information in areas that have evolved. Both IPC J-STD-001E and IPC-A-610E have also been more closely linked to eliminating the differences that c
Electronics Forum | Mon Jul 24 09:15:32 EDT 2017 | davef
James: This is not "breaking news." IPC-A-610F, Acceptability of Electronic Assemblies was released in July 2014. Both, ... * IPC-A-610G, Acceptability of Electronic Assemblies * J-STD-001G, Requirements for Soldered Electrical and Electronic Assem
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