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Power Grid Optimization and IR Drop Analysis

Power-grid planning to keep IR drop ≤ 60 mV on 1.2 V VDD.

Cadence InnovusTCL
VDD
1.2 V
Max IR Drop
≤ 60 mV
Budget
≤ 5%
Tool
Innovus

Problem

Analyze and optimize power distribution networks to keep IR drop within 5% of the 1.2 V VDD supply (≤ 60 mV) under the specified design constraints.

Approach

  • 01Power-grid planning, power-pad/bump placement, and topology analysis for robust power distribution.
  • 02Metal-layer utilization and power-pad distribution optimization to improve power integrity and minimize supply voltage degradation.
  • 03IR drop analysis and targeted power-grid optimization to meet the 60 mV target.

Results

  • → Power-grid topology and metal-layer utilization analyzed for IR drop.
  • → Power-pad/bump placement optimized for voltage integrity.
  • → 60 mV IR drop target used as the design constraint for sign-off.

Screenshots

Power Grid

Power mesh and stripes

IR Drop

Voltage drop heatmap

Bump Map

Power bump distribution

Reports

IR drop report
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Power grid analysis
PDF · placeholder