Hello technetters,
A timely opportunity to ask a Friday question:

We are an OEM and have our PCBs fabricated outsourced locally.

On our older products the previous staff used the following spec
(example below) on our drill prints and I've always wanted an
interpretation:

4 layers TL-GF-.XXX-C-1/1-A1

Sometimes the "TL" is "FL". Specifically, what do these letters
REALLY mean? Is there an IPC or mil spec that spells this out?

Thanks all in advance. No rush.

Craig Cullum, Engineering Technologist, AMTELCO
e: [log in to unmask]
   [log in to unmask]
f: 608 838 8367
v: 608 838 4194, or 4197, x128

Visit AMTELCO at www.amtelco.com

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