Tutorials:Cadence:ExampleLayouts

Example Layouts

Inverter

Shown below are several different ways to layout an inverter:

Layout 1

Area = 7.80um x 10.80um = 84.24um²

Layout 2

Area = 7.80um x 13.20um = 102.96um²

Layout 3

Area = 7.80um x 10.80um = 84.24um²

Layout 4

Area = 7.20um x 16.20um = 116.64um²

This inverter layout is designed to abut to form a ring oscillator. Notice the Metal 2 trace above the IN/OUT. This provides the return path from the output of the last inverter to the input of the first inverter in the ring oscillator.

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