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Electrically tunable device and a method relating thereto

E. Wikborg (Institutionen för fysik) ; Zdravko Ivanov (Institutionen för fysik) ; Peter Petrov ; Spartak Gevorgian (Institutionen för mikroteknologi och nanovetenskap)
(2003)
[Patent]

A thin film ferroelectric varactor device comprising a substrate layer, a ferroelectric layer structure and an electrode structure is presented. The ferroelectric layer structure comprises a number of ferroelectric layers and a number of intermediate buffer layers arranged in an alternating manner. At least a first and a second layer of the ferroelectric layers have different Curie temperatures, i.e. the dielectric constant of the first ferroelectric layer has a maximum at a temperature which is different from the temperature at which the dielectric constant of the second ferroelectric layer has a maximum.



Denna post skapades 2015-02-23.
CPL Pubid: 212954

 

Institutioner (Chalmers)

Institutionen för fysik (1900-2003)
Institutionen för mikroteknologi och nanovetenskap

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur