Integrated Circuit with Integrated Decoupling Capacitors

Ferroelectric capacitor structures for integrated decoupling capacitors and the like. The ferroelectric capacitor structure includes two or more ferroelectric capacitors connected in series with one another between voltage nodes. The series connection of the ferroelectric capacitors reduces the appl...

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Bibliographische Detailangaben
Hauptverfasser: RODRIGUEZ JOHN A, WEN HUANGUN, BARTLING STEVEN CRAIG, SUMMERFELT SCOTT ROBERT
Format: Patent
Sprache:eng
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Zusammenfassung:Ferroelectric capacitor structures for integrated decoupling capacitors and the like. The ferroelectric capacitor structure includes two or more ferroelectric capacitors connected in series with one another between voltage nodes. The series connection of the ferroelectric capacitors reduces the applied voltage across each, enabling the use of rough ferroelectric dielectric material, such as PZT deposited by MOCVD. Matched construction of the series-connected capacitors, as well as uniform polarity of the applied voltage across each, is beneficial in reducing the maximum voltage across any one of the capacitors, reducing the vulnerability to dielectric breakdown.