Jim
    Your quoted chapter and verses bring up a question that I have been struggling with.  With todays ever
shrinking lines and spaces, what is considered the "minimum electrical spacing"?  It seems to me that
different sections of a PWA could have different spacing requirements.  How is this spacing being
documented so that the information can be related to production personnel?

Gary Camac

[log in to unmask] wrote:

> Jim:  IPC-A-610B is not process dependent.  Solder balls, whether formed
> during through hole, SMT, wave solder, reflow or hand soldering are covered by
> par. 4.1 on page 53 of IPC-A-610B.  J-STD-001B covers solder balls with Defect
> No. 16 of Table 11-1 (again, not process or technology dependent).
> Hope the above helps some.
> Regards, Jim Moffitt, Moffitt Enterprises Consulting
>
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