Temperature-compensated ferroelectric capacitor device, and its fabrication
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United States of America Patent
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Nov 8, 2011
Grant Date -
Aug 24, 2006
app pub date -
Aug 19, 2005
filing date -
Sep 26, 2002
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Abstract
A temperature-compensated capacitor device has ferroelectric properties and includes a ferroelectric capacitor using a ferroelectric material such as a metal oxide ferroelectric material, a negative-temperature-variable capacitor using a negative-temperature-coefficient-of-capacitance material such as a metal oxide paraelectric material, and an electrical series connection between the negative-temperature-variable capacitor and the ferroelectric capacitor. The temperature-compensated capacitor device may be formed as an integrated layered structure, or as separate capacitors with a discrete electrical connection therebetween.
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