TICER: realizable reduction of extracted RC circuits

  • Authors:
  • Bernard N. Sheehan

  • Affiliations:
  • Mentor Graphics, Wilsonville, OR

  • Venue:
  • ICCAD '99 Proceedings of the 1999 IEEE/ACM international conference on Computer-aided design
  • Year:
  • 1999

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Abstract

TIme Constant Equilibration Reduction (TICER) is a novel RC reduction method tailored for extract/reduce CAD tools. Geometry-minded extraction tools fracture nets into parasitics based on local changes in geometry. The resulting RC circuits can have a huge dynamic range of time-constants; by eliminating the extreme time-constants, TICER produces smaller, less-stiff RC networks. It produces realizable RC circuits; can retain original network topology; scales well to large networks (~107 nodes); preserves dc and ac behavior; handles resistor loops and floating capacitors; has controllable accuracy; operates in linear time on most nets.