  Diced wafers.
These are individual silicon chips (rejects) cut from a larger wafer such as you can see examples of above. Had they not been rejected, these would have been placed in an IC package and then robots would have soldered a nest of extremely fine wires all around to make contact with the inputs and outputs on the chip and connect them to the pins on the package.
Source: SoCal (Nevada), Inc
Contributor: Theodore Gray
Acquired: 11 July, 2003
Price: $5
Size: 1/2"
Purity: >99.99999%
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