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Article #19236

Re: What's the deal? My chip says "SX-25";

#19236
From: Iskandar Taib
Date: Thu, 07 Jan 1993 17:41
31 lines
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In article <1iesn6INNgrp@sdl.Warren.MENTORG.COM> garyg@warren.mentorg.com writes:

>The process of growing high quality silicon hasn't changed much.
>Basically a seed >of solid silicon is suspended in container of melted
>silicon.  The seed is turned >and raised VERY slowly, allowing the
>silicon to crystalize around the seed.  This >process produces very
>high quality crystalline structures, and by its nature >produces a
>salami shaped product. 


Hmm

Is it silicon or silica? I know there are places where they grow large
high purity silica (aka quartz) crystals for some kind of electronic 
use. I suspect its metallic silicon that goes into chips - the quartz 
is probably for piezoelectric devices.

What color are these wafers? (i.e. on the non-gold plated side).

(Still wondering if I could get a reject wafer somewhere.. better 
than trying to peel ceramic off an old chip to see whats inside..)





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Iskandar Taib                          | The only thing worse than Peach ala
Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
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From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: What's the deal? My chip says "SX-25";
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Date: Thu, 7 Jan 1993 17:41:30 GMT
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