Maze routing with buffer insertion and wiresizing

Minghorng Lai, D. F. Wong

Research output: Contribution to journalJournal articlepeer-review

10 Citations (Scopus)


The authors propose an elegant formulation of the Maze Routing with Buffer Insertion and Wiresizing problem as a graph-theoretic shortest path problem. This formulation provides time and space performance improvements over previously proposed dynamic programming based techniques. Routing constraints such as wiring obstacles and restrictions on buffer locations and types are easily incorporated in the formulation. They construct a buffer planning (BP)-graph such that the length of every path in this graph is equal to the Elmore delay. Therefore, finding the minimum Elmore delay path becomes a finite shortest path problem. The buffer choices and insertion locations are represented as the vertices in the BP-graph. The interconnect wires are sized by constructing a look-up table for buffer-to-buffer wiresizing solutions. The authors also provide a technique that is able to tremendously improve the runtime. Experiments show improvements over previously proposed methods.

Original languageEnglish
Pages (from-to)1205-1209
Number of pages5
JournalIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Issue number10
Publication statusPublished - Oct 2002

Scopus Subject Areas

  • Software
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Buffer insertion
  • Routing
  • Wiresizing


Dive into the research topics of 'Maze routing with buffer insertion and wiresizing'. Together they form a unique fingerprint.

Cite this