公开(公告)号：US20120293278A1

公开(公告)日：2012-11-22

申请号：US13112407

申请日：2011-05-20

申请人： Dariusz BURAK ,  Alexandre SHIRAKAWA ,  John D. LARSON, III ,  Paul BRADLEY ,  Richard C. RUBY ,  Bernhard KOELLE ,  John CHOY ,  Kevin J. GRANNEN

发明人： Dariusz BURAK ,  Alexandre SHIRAKAWA ,  John D. LARSON, III ,  Paul BRADLEY ,  Richard C. RUBY ,  Bernhard KOELLE ,  John CHOY ,  Kevin J. GRANNEN

IPC分类号： H03H9/58

CPC分类号： H03H9/585 ,  H03H9/0211 ,  H03H9/1007 ,  H03H9/1014 ,  H03H9/173 ,  H03H9/175

摘要： A device comprises a substrate, an acoustic stack, and a distributed Bragg reflector. The acoustic stack comprises a first electrode formed on the substrate, a first piezoelectric layer formed on the first electrode, a second electrode formed on the first piezoelectric layer, a second piezoelectric layer formed on the second electrode, and a third electrode formed on the second piezoelectric layer. The distributed Bragg reflector is formed adjacent to the acoustic stack and provides it with acoustic isolation.

摘要翻译： 一种器件包括衬底，声学堆叠和分布式布拉格反射器。 声堆叠包括形成在基板上的第一电极，形成在第一电极上的第一压电层，形成在第一压电层上的第二电极，形成在第二电极上的第二压电层，以及形成在第二电极上的第三电极 压电层。 分布式布拉格反射器形成在声堆叠附近，并提供声隔离。

公开(公告)号：US20110204995A1

公开(公告)日：2011-08-25

申请号：US12710626

申请日：2010-02-23

申请人： Tiberiu JAMNEALA ,  Alexandre SHIRAKAWA ,  Bernhard KOELLE

发明人： Tiberiu JAMNEALA ,  Alexandre SHIRAKAWA ,  Bernhard KOELLE

IPC分类号： H03H9/15 ,  H01L41/22

CPC分类号： H03H9/584 ,  H03H9/50 ,  H03H9/587 ,  Y10T29/42

摘要： A signal processing device includes a first acoustic resonator, a second acoustic resonator disposed on the first acoustic resonator, and a coupling layer between the first and the second acoustic resonators. The first acoustic resonator has a first electrical impedance and a first resonance frequency and includes a first set of electrodes, and a first piezoelectric layer having a first thickness, disposed between the first set of electrodes. The second acoustic resonator has a second electrical impedance and a second resonance frequency, and includes a second set of electrodes, and a second piezoelectric layer having a second thickness, wherein the second piezoelectric layer is disposed between the second set of electrodes. The first electrical impedance at a passband frequency of the device substantially differs from the second electrical impedance at the passband frequency of the device. The first and second resonance frequencies are substantially different from each other.

摘要翻译： 信号处理装置包括第一声谐振器，设置在第一声谐振器上的第二声谐振器和第一和第二声谐振器之间的耦合层。 第一声​​谐振器具有第一电阻抗和第一谐振频率，并且包括第一组电极和设置在第一组电极之间的具有第一厚度的第一压电层。 第二声谐振器具有第二电阻抗和第二谐振频率，并且包括第二组电极和具有第二厚度的第二压电层，其中第二压电层设置在第二组电极之间。 器件通带频率处的第一个电阻抗与器件的通带频率处的第二个电阻抗基本上不同。 第一和第二共振频率基本上彼此不同。