You've done your homelesson well, and are of course curious on what grade
you got. Some of you were very close, especially after I gave the thread
'clay'. Certain aluminium bearing clays (bauxit) can be refined and
processed to ceramic tapes (HTCC) and a few of you guessed right: it's a
aluminum oxide substrate, but not a simple one. No, the tapes are processed
in BIG BLUE's plant in Boeblingen. At that time probably the most advanced
Multi Chip Module factory in the world. I visited that wonderland many years
ago, in order to buy very advanced LTCCs, but they had concentrated on HTCC.
What you see on the photo is a little multichip module for a supercomputer,
that I think was never finished. The module has over 50 layers, front side
has about 15,000 pads and the backside about 1,000 I/Os! I thought the
module was a sample for me, but realized that this was a mistake. Nobody
reflected when I put it in my pocket and went home. However, I did not show
it other than internally at my company. I don't know what IBM makes in
Boeblingen today, but I think the superadvanced module manufacturing was
closed, of some reason I don't know about. The plant was fully automated and
was a dreamland for a guy interested in multichip module production.
Next week, I'll increase the degree of difficulty. The one who guess right
then will be get the title "TNY" (TechNet's Yoda).
Inge
----- Original Message -----
From: "Ingemar Hernefjord (KC/EMW)" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, September 28, 2006 9:22 AM
Subject: [TN] NTC: prepare Friday question
Hi all, am sending a picture to Steve McGregory for his exhibition
wall. You are asked to guess what the picture is showing, a modern
kitchen equipment or what? On Friday you will see how good you were.
Inge
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