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Impact of Gate Tunneling Leakage on Performances of Phase Locked Loop Circuit in Nanoscale CMOS Technology

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2 Author(s)
Jung-Sheng Chen ; Nanoelectronics & Gigascale Syst. Lab., National Chiao-Tung Univ., Hsinchu ; Ming-Dou Ker

The influence of gate tunneling leakage on the circuit performances of phase locked loop (PLL) in nanoscale CMOS technology has been investigated by simulation. The basic PLL with second-order loop filter is used to simulate the impact of gate tunneling leakage on performance degradation of PLL in a standard 90-nm CMOS process. The MOS capacitors with different oxide thicknesses are used to investigate this impact to PLL. The locked time, static phase error, and jitter of second-order PLL are degraded by the gate tunneling leakage of MOS capacitor in loop filter.

Published in:

Reliability physics symposium, 2007. proceedings. 45th annual. ieee international

Date of Conference:

15-19 April 2007