Hard IP, an introduction
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2 HARD IP MIGRATION WITH A PROVEN SYSTEM AND METHODOLOGY
2.1 Hard IP Reuse, Linear Shrink or Compaction?
2.1.1 Keeping What’s Good / Improving the Rest
2.1.2 Layout Flexibility and Control with Polygon Based Compaction
2.1.3 Linear Shrink Versus Compaction
2.2 Retargeting to a New Process with Compaction
2.2.1 Retargeting for Unchanged Functionality
2.2.2 Retargeting to Conform to Target Process Design Rules
2.2.3 Retargeting for Reliability
2.3 Correct Electrical and Timing Behavior of Migrated Chips
2.3.1 Retargeting for Correct Interconnect Timing
2.3.2 Retargeting for Correct Transistor Timing
2.3.3 Retargeting for Correct Interconnect and Transistor Timing
2.4 Inputs, Feedback and Leverage on the Layout
2.4.1 Setup for Migration Process
2.4.2 A Bird’s Eye View of a Migration
2.4.3 Output Data (Feedback) From the Compactor
2.4.4 Statistical Feedback on the Layout
2.4.5 Keeping Polygons Edges on a Grid
2.4.6 Compaction-Induced Jogging
2.4.7 Contact Optimization After Migration
2.4.8 Minimization of Parasitic Capacitance or Resistance
2.4.9 Some Other Challenges
2.4.10 Summary on Compaction
2.5 Evolution and Applications of Hard IP Migration Methodology
2.5.1 Standard Cell Library Migration
2.5.2 Migration of Regular Structures
2.5.3 Hierarchy Maintenance in Hard IP Migration
2.5.4 Flat Hard IP Migration
2.5.5 Migration of Entire Chips

 
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