Integrated circuit
Also called microcircuit, the integrated circuit is an assembly of electronic components, fabricated as a single unit, in which active semiconductor devices ( transistors and diodes) and passive devices (capacitors and resistors) and their interconnections are built up on a chip of material called a substrate (most commonly made of silicon). The circuit thus consists of a unitary structure with no connecting wires. The individual circuit elements are microscopic in size.
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