Capacitor with aluminum oxide and lanthanum oxide containing...

Details Capacitor with aluminum oxide and lanthanum oxide containing... Capacitor with aluminum oxide and lanthanum oxide containing...

2006-09-05

2006-09-05

Dinkins, Anthony (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C257S295000, C438S240000

Reexamination Certificate

active

07102875

ABSTRACT:
Disclosed is a capacitor with a dielectric structure having an aluminum oxide layer and a lanthanum oxide layer and a fabrication method thereof. The capacitor includes: a lower electrode; a first dielectric layer with a high energy band gap formed on the lower electrode; a second dielectric layer formed on the first dielectric layer, the second dielectric layer with a high dielectric constant, wherein an energy band gap of the second dielectric layer is lower than the energy band gap of the first dielectric layer; and an upper electrode formed on the second dielectric layer.

REFERENCES:
patent: 6541280 (2003-04-01), Kaushik et al.
patent: 6770923 (2004-08-01), Nguyen et al.
patent: 2002/0115252 (2002-08-01), Haukka et al.
patent: 2003/0017639 (2003-01-01), Ballantine et al.
patent: 2003/0205729 (2003-11-01), Basceri et al.
patent: 2003/0213987 (2003-11-01), Basceri et al.
patent: 2004/0038554 (2004-02-01), Ahn et al.
patent: 2004/0046197 (2004-03-01), Basceri et al.

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