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Subject:	RE: PWB and PCB???
From:	"Phillips, Peter (NM75)" <[log in to unmask]>
Date:	Mon, 21 Oct 96 10:41:00 MDT
Content-Type:	text/plain
Parts/Attachments:	text/plain (61 lines)


Doug,

ref: IPC-T-50  "Terms and Definitions for Interconnecting and Packaging 
Electronic Circuits"

The normal industry practice of distinguishing between them is as follows:

Printed Wiring Board - A printed board that provides point-to-point 
connections, but not printed components, in a predetermined arrangement on a 
common base.

Printed Circuit Board - A printed board that provides both point-to-point 
connections and printed components in a predetermined arrangement on a 
common base.

A PWB or a PCB with components mounted on it is commonly referred to as a 
 Printed Circuit Board Assembly (PCB Assembly), Printed Wiring Assembly 
(PWA) or more recently as a Circuit Card Assembly (CCA).

 ----------
From: TechNet-request
To: technet
Subject: PWB and PCB???
Date: Monday, 21 October, 1996 11:22PM

Is there a difference between a
PWB - Printed Wiring board and
PCB - Printed Circuit Board
in the industry?

Is it safe to assume (uh-oh) the PWB is the bare board and
the PCB is the PCB w/components, i.e. a PCB assembly?

Does anyone out there make a strict division between the two this way?

*******************************************************
Doug McKean
[log in to unmask]
 -------------------------------------------------------
The comments and opinions stated herein are mine alone,
and do not reflect those of my employer.
 -------------------------------------------------------
*******************************************************

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