[OM] Re: Canon, Fuji, Konica-Minolta, Nikon and Sony recall

[James N. McBride]

I find the story very interesting. I used to do failure analysis and
sometimes the trail of evidence takes one to very strange places. Thanks for
sharing. /jmac

-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx]On
Behalf Of Chuck Norcutt
Sent: Wednesday, October 12, 2005 6:00 AM
To: olympus@xxxxxxxxxx
Subject: [OM] Re: Canon, Fuji, Konica-Minolta, Nikon and Sony recall


Andreas Pirner wrote:
> Winsor Crosby wrote:

> Origin of problems are Sony CCD sensors made between 10/2002
> and 03/2004. At that time frame is said to be critical by
> Sony. A reason given for the problems are wires getting
> loose, wires from/to the CCD sensor.
>
> Sony had experimented with the bonding chemicals to increase
> output rate. Some jodine related substance creates most
> troubles. It evaporates and corroded the wires. The
> manufacturing process is altered since and thought to be
> corrected now.
------------------------------------------

Reminds me of IBM's "silver migration" problem of the early 70's.  IBM's
chips were ultra-sonically bonded to a ceramic substrate that contained
circuit lines printed on the substrate with a conductive paste made with
powdered silver.  For reasons never well understood the parts began to
fail in the field in large numbers.

<<<   snip



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