Mike,

There are several generic notes needed to control the assembly, test,
inspection of a Printed Wiring Assembly.  I will assume for the moment you
have an off-drawing parts list, but that is not too important to most notes.
Here are some we use on nearly every drawing:

1. Reference designators per schematic diagram xxxxxxxx and may not appear
on parts
2. Test Assembly per xxxxxxxx (test document)
3. Process and solder assembly per ANSI/J-STD-001 Class XX (or your internal
soldering process spec)
4. Workmanship Standards per IPC-A-610 Class XX (or your ISO internal
workmanship spec)
5. Mark assembly PN, revision and Serial number in approximate location
shown with .12 ref. high characters per (marking spec) using (ink PN, spec)
6. Components requiring specific lead forming are listed in the PWA design
database xxxxxxxx-nnn.  Lead forming to be per individual component template
requirement.
7. Square pad, Radiused or chamfered component land indicates:
        A. Pin one of component
        B. Positive end of capacitor
        C. Emitter of transistor
        D. Cathode of diode

Is this what you are looking for?

> Rainer G. Blomberg
> Honeywell -Space Systems Clearwater
> Staff Production Engineer
(727) 539-5534


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Michael McMonagle
Sent: Wednesday, November 16, 2005 8:32 AM
To: [log in to unmask]
Subject: [TN] Assembly Drawing Notes?

We are updating some PCBA assembly drawings, and looking for a little
guidance on notes to include on the drawings. Current standard notes
include:



-          Solder alloy required

-          Assembly processes to be in accordance with latest rev
ANSI/J-STD-001 Class XX

-          Workmanship to be in accordance with latest rev IPC-A-610 Class
XX



Other than additional notes for idiosyncrasies specific to a given assembly,
are there any other 'boilerplate' notes we should incorporate?



Mike McMonagle

Quality Engineer

OYO Geospace

7007 Pinemont Drive

Houston, TX 77040

713-986-8650




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