Improved power modeling in logi-thermal simulation

This paper presents several power modeling algorithms used in CellTherm [1], the logi-thermal simulator developed at BME as well as new improvements in the software tool. The simulator engine uses power characteristics of standard cells composing the design in question in order to calculate self heating of the circuit. These power characteristics have been simulated using different algorithms that approximate real power consumption. This paper introduces a methodology to characterize standard cells for power with minimum effort. The method proposed is an alternative to characterize standard cell libraries that do not include power/timing characterization databases, such as a Liberty database. The application of the measured energy data is easier and faster than that of the Liberty database.