Static IR analysis
Static IR Analysis is a process in which we analyse the static power consumption and static
IR drop occurring across the instances when the instances in the design are at stand-by mode.
Input files for Static IR Analysis
Library Data: LEF, LIB & Apache Tech
Design Data: .V, DEF, PLOC & IPF
Factors leading to Static IR failure
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Opens, Shorts, Missing Via, Dangling Nets
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More number of high drive strength cells at a close proximity.
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More number of leakage cells.
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High load & wire capacitance.
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High resistive path
Fixes to static IR issues
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Dropping Via
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Uniform distribution of stripes
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Multi cut via
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Adding Switch cells
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Metal widening
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Splitting load capacitance.
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Spreading high drive strength cells.
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Downsizing high drive strength cells.
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Replacing LVT with HVT cells