Title :
Illustration of the importance of on-chip self and mutual inductances
Author :
Lopez, A. ; Deschacht, D.
Author_Institution :
Lab. d´´Informatique, de Robotique et de Microelectronique de Montpellier, UMR CNRS, Montpellier, France
Abstract :
Transmission line properties of on-chip wiring need to be taken into account due to the great lengths and fast rise times encountered. In this paper, we show the influence of on-chip self and mutual inductances on timing performances by considering two configurations of parallel coupled interconnects, one with both drivers on the same side, and on the other with the drivers in opposite directions. The differences observed, when the currents in the lines flow in the same direction as opposed to the cases when the currents are in opposite directions shows clearly the influence of mutual inductance. A second comparison ignoring inductive effects shows a discrepancy rate reaching as high as 50% for the output switching delay.
Keywords :
delays; inductance; integrated circuit interconnections; on-chip mutual inductance; on-chip self inductance; on-chip wiring; output switching delay; parallel coupled interconnects; timing performances; transmission line properties; Delay; Distributed parameter circuits; Frequency; Impedance; Inductance; Integrated circuit interconnections; Mutual coupling; Power transmission lines; Timing; Very large scale integration;
Conference_Titel :
Signal Propagation on Interconnects, 2004. Proceedings. 8th IEEE Workshop on
Print_ISBN :
0-7803-8470-9
DOI :
10.1109/SPI.2004.1409022
