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Computing (FOLDOC) dictionary (also found in English - Vietnamese, English - English (Wordnet), )
substrate
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hardware The body or base layer of an integrated circuit,
onto which other layers are deposited to form the circuit.
The substrate is usually Silicon, though Sapphire is used for
certain applications, particularly military, where radiation
resistance is important. The substrate is originally part of
the wafer from which the die is cut. It is used as the
electrical ground for the circuit.