Hot-Carrier Aging Simulations of Voltage Controlled Oscillator

Norio KOIKE, Hirokazu NISHIMURA, Masato TAKEO, Tomoyuki MORII, Kenichiro TATSUUMA

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Summary :

Hot-carrier degradation of voltage controlled oscillator (VCO) was investigated by a reliability simulator known as BERT. The appropriate monitor of VCO frequency degradation shifts from the saturated drain current of an N MOSFET to linear drain current with an increase in VCO input voltage. The degradation of the VCO drastically increases with a small reduction in initial oscillation frequency. These results imply the need for an appropriate reliability margin around the standard operating point as well as a performance margin, which cannot be achieved by using conventional drain current monitors.

Publication
IEICE TRANSACTIONS on Electronics Vol.E79-C No.9 pp.1285-1288
Publication Date
1996/09/25
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Integrated Electronics

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