How do you relate the Levels (A, B, & C) to IPC Classes 1, 2 & 3? We
design and build assemblies for Army ground vehicles and contract state
to use IPC Class 3 standards.
I keep thinking I remember that 0.017 was nominal back in the 80s.
Thanks for all the help, Jon
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Gary Ferrari
Sent: Tuesday, February 23, 2010 9:09 AM
To: [log in to unmask]
Subject: Re: [TN] LEAD TO HOLE RATIO QUESTION
Jon,
You will find the information you are looking for in IPC-2222A Table
9-3.
Gary
On 2/23/2010 9:45 AM, Roberts, Jon (SA-1) wrote:
> I was trying to find in IPC 2200 series where the lead to hole ratio
is
> discussed. I remember we would provide to contractor instructors the
> requirements. That is going back to the WS5626 days. Can you direct
me
> where to find that information. I am looking for double
side-multilayer
> boards for meeting Class 3 of IPC J-Std-001.
>
> Thanks, Jon
>
>
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