- IR Drop is related to voltage drop in power distribution interconnects in a chip which can be static or dynamic or both. This drop can reduce supply voltage reaching to the standard cell. So standard cell may not work perfectly.
- Static IR Drop:
- Static IR drop are drop in VDD voltage level caused by resistance of wire metal used in power distribution.
- In other words it is the drop due to current flow through the interconnects wires when circuit is at steady state. e.g. no inputs are switching.
- The factor affecting the static IR drop are basically the dimension of power rails, width, via, power switch sizes etc..
- Dynamic IR Drop:
- Dynamic IR drop refers to the voltage drop in VDD due
Tuesday, 3 October 2017
IR Drop
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