Title

Experimental evaluation of hot electron reliability on differential Clapp-VCO

Authors

Authors

S. L. Jang; J. S. Yuan; S. D. Yen; E. Kritchanchai;G. W. Huang

Comments

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Abbreviated Journal Title

Microelectron. Reliab.

Keywords

LOW-FREQUENCY NOISE; CARRIER DEGRADATION; MOS-TRANSISTORS; MOSFETS; STRESS; PERFORMANCE; GENERATION; STATE; Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Physics, Applied

Abstract

This paper studies the hot-carrier stressed property of a series-tuned all-n core voltage controlled oscillator (VCO). A differential Clapp-VCO has been successfully implemented in the 0.13 m CMOS process and it uses a series-tuned resonator. Two single ended nMOS-core Clapp-VCOs are used to form a differential VCO by the aid of a cross-coupled nMOS pair and a transformer. The measured results show that the fresh Clapp-VCO operates from 18.8 to 22.2 GHz and hot-carrier stressed experimental data indicate that the damage increases the oscillation frequency and degrades the phase noise of oscillator. Mixed-mode simulation results are used to show the hot-carrier physics to the circuit. (C) 2012 Elsevier Ltd. All rights reserved.

Journal Title

Microelectronics Reliability

Volume

53

Issue/Number

2

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

254

Last Page

258

WOS Identifier

WOS:000315614600012

ISSN

0026-2714

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