Silicon Silicon wafer
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Silicon wafer.
These are broken pieces of etched silicon wafer purchased at the Tech Museum in San Jose, in the late 1990s. No idea what chips are on the wafer.
Source: The Tech Museum, San Jose, California
Contributor: Theodore Gray
Acquired: 15 April, 2002
Price: $20/unbroken wafer
Size: 1.5"
Purity: 99.9999%