Electronics Forum | Wed Feb 24 07:56:53 EST 1999 | Brian C
Under IPC-A-610 Section 10.3(Components on their sides) it reads: ______________________________________________________ Acceptable - Class 1,2 Nonconforming Defect � Class 3 Chip components on its side provided the following are met: Chip
Electronics Forum | Wed Feb 24 10:56:12 EST 1999 | Steve Schrader
| Under IPC-A-610 Section 10.3(Components on their sides) it reads: | ______________________________________________________ | Acceptable - Class 1,2 | Nonconforming Defect � Class 3 | | Chip components on its side provided the following | are
Electronics Forum | Mon Feb 02 12:36:41 EST 2004 | paul_bmc
90% of the assemblies our company produces are class 3 and we have no problem at all inspecting or getting class 3 quality through reflow. Rarely do we have touch up because of insufficient or poorly reflowed solder joints. What are the problems you
Electronics Forum | Thu Oct 05 09:01:19 EDT 2000 | LarryK
The IPC-A-610 has the Acceptability requirements and the ANSI/J-STD-001 has the Requirements for soldering. Both deal with the requirements for the individual classes. Both of them are published by IPC and can be purchased in lots of places includ
Electronics Forum | Thu Aug 30 12:21:13 EDT 2001 | monkey
Send them to the SMTA - they have classes and courses for all levels. There is one in Boston at the end of next month. They have one at a different location every 3 or 4 months... http://www.smta.org/smtai/index.cfm
Electronics Forum | Wed Sep 26 11:58:13 EDT 2001 | Fox
Don't hold me to it but... Class 1-process indicator, varify value (cap, resistor) Class2,3-failure (rework required) This is what we used at my former job when i took over QA responsibility.
Electronics Forum | Mon Mar 10 09:47:31 EST 2003 | davef
James: So, why don't you clean your no-clean? At least then you stand a chance of doing class 2 and class 3 work.
Electronics Forum | Thu Apr 17 16:41:37 EDT 2003 | davef
60% ||||36% of ball area|| >36% ||Class2|| Accept|| Reject ||||45% of ball diameter|| >45% ||||20.25% of ball area|| >20.25% ||Class3|| Accept|| Reject ||||30% of ball diameter|| >30% ||||09% of ball area|| >09%
Electronics Forum | Mon May 03 21:39:09 EDT 2004 | ACE
Does anyone know there a standard matrix of clearances part to part for Class 2 and Class 3 board design. IPC does issue a preferred matrix but they are so liberal they not so useful in the real world. Any suggestions would really be appreciated.
Electronics Forum | Wed Oct 13 19:16:42 EDT 2004 | secme
Go to http://www.h-st.com Houston Sigma has been doing almost exclusively Class 3 for years
