A circuit diagram (also known as an electrical diagram, elementary diagram, or electronic
schematic) is a simplified conventional pictorial representation of an
electrical circuit. It shows the different components of the circuit as simplified standard symbols, and the
power and
signal connections between the devices. Arrangement of the components interconnections on the diagram does not correspond to their physical locations in the finished device.
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a schematic diagram converted to the pattern that will be transferred to a wafer by photolithography. Once a schematic of a circuit is complete and has been simulated, the schematic is converted to a circuit layout based on a set of design rules for the process being used. Certain elements of the layout may exist as cells that are connected together to make the circuit.