J-STD-001 or IPC-A-610? 
What is your ESD control system like? 
What is your Quality Management System like? 
What are your process validations and material handling controls like? 

One standard has requirements the other may not.  

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Rudolph yu
Sent: Tuesday, November 18, 2008 11:45 PM
To: [log in to unmask]
Subject: [TN] IPC class 3 requirements??

Besides of meeting the class 3 solder joints crtieria per the IPC
workshipment standards, what else will a company need to do / meet in order
to claim its products as class 3 instead of class 2?
 
Recently one of our customers requested us to build their prodcut to the
class 3 std.  (only IPC-610, PCB can be fabricated at class2 per IPC-600)
 
Since the design only has BGA ( which share the same crtieria between class2
and class3), TSOP, and 0402 part, process-wise we should be able to achieve
the tighten tolerence.  However is there other areas ( besides pure
workmanship) I need to be aware of before we go out and claim that we can
build and ship products as class 3?  Our company had only built to class 2
in the pass.
 
Also, how much more should we charge the customer in % now that we need to
build the same product from class 2 to class 3?
It seems that the stencil is the only thing we will need to change for the
purpose. 
 
Thanks
Rudolph 
 

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