| A timing-driven global routing algorithm applicable to high-speed bipolar LSI's is proposed. Path-based timing constraints are directly modeled and routing paths are selected using nov el heuristic criteria to minimize area as well as to satisfy the timing constraints by keeping track of the critical path delay and channel densities. Using bipolarspecic features, this router can be applied to Gbit/s LSI's. Experimental results shows that the av erage delay improvement was 17.6% and the algorithm is quite promising.