David,
Within the general IPC guideline and generally speaking, "human readable"
and "barcode", assembly no., date code, unique serial no. and CM identifier
will usually suffice the basic needs in a small footprint. Having worked for
a CM designing barcode labels for assembly processes, customer products, and
internal procedures the labels are personal to each customer with creative
ways of building intelligence into the limited barcode encrypted data. Don't
know of a standard barcode format either. Some of the common barcodes I've
seen would be the UPC code with check digit commonly seen on consumer
products, code 39, and code 128 to name a few, code 128 being the most
flexible. However, now with the introduction of the 2D barcode labels short
stories can be encrypted into barcodes that are only 1" wide and 1" long and
hold complete paragraphs of data never before considered as part of
sub-assembly labeling information. Barcode labels don't have to be just
black and white lines anymore.
AJB
----- Original Message -----
From: "Bernard, David" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, April 22, 2002 4:54 AM
Subject: [TN] Bar Code Standards
> Dear Technetters,
>
> Can anybody tell me if there are any recommended standards for the
> suggested data content within bar codes used on boards?
>
> Thank you,
>
> David
>
> David Bernard
>
> Dage Holdings Plc
> Rabans Lane
> Aylesbury
> Buckinghamshire
> HP19 8RG
> United Kingdom
>
> Tel: 01296 317860 - Direct
> Tel: 01296 317800
> Fax: 01296 435408
> E: [log in to unmask]
> W: www.dage-group.com
>
>
>
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>
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