Title :
Two-dimensional transient analysis of a collector-up ECL inverter
Author :
Kuo, J.B. ; Yang, Tsen Shau ; Dutton, Robert W. ; Wooley, Bruce A.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
10/1/1989 12:00:00 AM
Abstract :
For very small-geometry devices, two-dimensional parasitic effects can be complicated and models with extracted parameters may not be sufficient for accurately analyzing circuit performance. Using a device-level simulator, PISCES-2B, with appropriate boundary conditions, the transient performance of an emitter coupled logic (ECL) inverter with collector-up bipolar transistors of 1 μm×1 μm has been analyzed. The propagation delay of this inverter is less than 30 ps for driving an output load of 2 fF with an output swing of 0.8 V at a biasing current of 120 μA. The speed performance is the result of its buried common emitter structure and its very small collector-to-substrate parasitic capacitances
Keywords :
bipolar integrated circuits; circuit analysis computing; emitter-coupled logic; integrated logic circuits; transient response; 120 muA; 2D analysis; 30 ps; ECL inverter; PISCES-2B; buried common emitter structure; collector-up bipolar transistors; device-level simulator; emitter coupled logic; propagation delay; small-geometry devices; transient analysis; two-dimensional parasitic effects; Analytical models; Boundary conditions; Circuit analysis; Circuit optimization; Circuit simulation; Coupling circuits; Inverters; Logic devices; Performance analysis; Transient analysis;
Journal_Title :
Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on
