Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1998-03-11
2000-09-05
Do, Diep N.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
365145, 365201, G01R 2726, G11C 1122
Patent
active
06114861&
ABSTRACT:
Described herein is an apparatus for evaluating the polarization characteristic of a ferroelectric capacitor. The apparatus includes a ferroelectric capacitor, a first pulse generator, a second pulse generator, a reference capacitor of a known capacitance value, and switch means. Those electronic circuit elements and components are all fabricated into a semiconductor substrate. In the apparatus, the first and second electrodes of the ferroelectric capacitor are connected to the output terminals of the first and second pulse generators. A second electrode of the ferroelectric capacitor is connected to an output terminal of the second pulse generator. The second electrode of the ferroelectric capacitor is connected to a first electrode of the reference capacitor through the switch means.
REFERENCES:
patent: 5218566 (1993-06-01), Papaliolios
patent: 5262982 (1993-11-01), Brassington et al.
patent: 5835400 (1998-11-01), Jeon et al.
Do Diep N.
Matsushita Electronics Corporation
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