Path: utzoo!attcan!uunet!zephyr.ens.tek.com!gvgpsa!gold!grege
From: grege@gold.GVG.TEK.COM (Greg Ebert)
Newsgroups: sci.electronics
Subject: Re: plated thru holes
Message-ID: <1043@gold.GVG.TEK.COM>
Date: 30 May 90 20:44:25 GMT
References: <1109@uvicctr.UVic.CA.UUCP> <1114@uvicctr.UVic.CA.UUCP> <1422@marlin.NOSC.MIL>
Distribution: na
Organization: Grass Valley Group, Grass Valley, CA
Lines: 16

In article <1422@marlin.NOSC.MIL> herman@marlin.nosc.mil.UUCP (John W. Herman) writes:
>
>--
>I vaguely recall seeing an ad for a machine that puts sleeves in
>PC board holes the claim being that the sleeves could be put in
>for much less than plating through holes.  I only remember seeing
>the ad and not much else.
>-- 
 
 I saw such a machine demonstrated at NEPCON in 1984(?). You clamp-in a pre
 drilled board, pour a few thousand sleeves in the tank, and then the board
 vibrates. I was astonished to see that, yes indeed, the holes were filled.
 I don't know how reliable the process was. Many moons ago I was a tech, and
 I distinctly remember a particular CPU board nobody else could fix because
 every time you touched it with a scope probe, it died. Guess what! It was a
 hole that wasn't plated through.