Title :
Parasitic-aware Delay Optimization for Multi-GHz Static CMOS Ring Oscillators
Author :
Karam, Victor ; Fong, Neric ; Plett, Calvin
Author_Institution :
Dept. of Electron., Carleton Univ., Ottawa, Ont.
Abstract :
A method for optimizing the oscillation frequency of a multi-GHz ring oscillator composed of static CMOS inverters is derived. The derivation is based on the propagation delay of each inverter stage, and it includes the effects of interconnect parasitics and gate resistance. The method was verified with a 90-nm SOI CMOS process through layout extraction and simulation for predicting the underlying factors in delay as the inverter´s devices were scaled
Keywords :
CMOS digital integrated circuits; delays; integrated circuit modelling; invertors; oscillators; silicon-on-insulator; 90 nm; CMOS digital integrated circuits; SOI; gate resistance; interconnect parasitics; multi GHz ring oscillator; parasitic-aware delay optimization; propagation delay; static CMOS inverters; CMOS digital integrated circuits; Circuit simulation; Foundries; Frequency; Integrated circuit interconnections; Inverters; Optimization methods; Propagation delay; Ring oscillators; Semiconductor device testing; CMOS digital integrated circuits; SOI; delay; propagation; ring oscillators;
Conference_Titel :
Circuits and Systems, 2006 IEEE North-East Workshop on
Conference_Location :
Gatineau, Que.
Print_ISBN :
1-4244-0416-9
Electronic_ISBN :
1-4244-0417-7
DOI :
10.1109/NEWCAS.2006.250910
