Title :
Bicmos LC-tank characterization and extraction of small signal equivalent circuit
Author :
Andrei, C. ; Bassement, Gregory ; Depreeuw, Didier ; Imbert, Guy
Abstract :
In this paper, a procedure for characterization and modeling of LC-tanks is proposed to enhance simulation accuracy in design of monolithic Voltage Controlled Oscillators (VCO). This efficient procedure is easy to implement combining robust design of G-S-G (Ground-Signal-Ground) test structures and accurate on-wafer characterizations, and it is in particular suitable for modeling of high frequency VCOs fabricated in advanced CMOS and BiCMOS technologies. The methodology allows the extraction of LC-tank capacitors including all RLC-tank parasitics and therefore features an important increase of modeling accuracy. The method has been validated in the case of several LC-tanks (oscillating between 6 and 10 GHz). The tank inductors and capacitors have been characterized on-wafer up to 50 GHz.
Keywords :
BiCMOS integrated circuits; RLC circuits; capacitors; equivalent circuits; inductors; integrated circuit design; integrated circuit modelling; integrated circuit testing; voltage-controlled oscillators; BiCMOS LC-tank; LC-tank capacitors extraction; RLC-tank parasitics; VCO; equivalent circuit signal; frequency 6 GHz to 10 GHz; ground-signal-ground test structures; monolithic voltage controlled oscillators; on-wafer characterizations; tank capacitors; tank inductors; Capacitance; Frequency measurement; Inductors; Oscillators; Radio frequency; Scattering parameters; Varactors; LC-tank oscillator; RF modelling; S parameter; passive devices;
Conference_Titel :
Semiconductor Conference (CAS), 2010 International
Conference_Location :
Sinaia
Print_ISBN :
978-1-4244-5783-0
DOI :
10.1109/SMICND.2010.5650760
