公开(公告)号：EP2109935A1

公开(公告)日：2009-10-21

申请号：EP08701476.7

申请日：2008-01-15

申请人： STMicroelectronics SA ,  Centre National de La Recherche Scientifique-CNRS

发明人： BELOT, Didier ,  CATHELIN, Andreia ,  DEVAL, Yann ,  EL HASSAN, Moustapha ,  KERHERVE, Eric ,  SHIRAKAWA, Alexandre Augusto

IPC分类号： H03H9/17 ,  B81B3/00

CPC分类号： H03H9/172 ,  H03H9/0547 ,  H03H2003/0428 ,  H03H2009/02181 ,  H03H2009/241

摘要： The invention relates to a volume acoustic resonator having an adjustable resonance frequency, comprising a piezoelectric member with two electrodes. It further includes a switching member (12) defining an additional electrode that is selectively superimposed on one of the electrodes for varying the total thickness of said electrode and modifying the resonance frequency of the resonator accordingly.

公开(公告)号：EP2203976A1

公开(公告)日：2010-07-07

申请号：EP08842063.3

申请日：2008-10-22

申请人： STMicroelectronics SA ,  Centre National de la Recherche Scientifique

发明人： BELOT, Didier ,  CATHELIN, Andreia ,  SHIRAKAWA, Alexandre, Augusto ,  PHAM, Jean-Marie ,  JARY, Pierre ,  KERHERVE, Eric

IPC分类号： H03H9/02

CPC分类号： H03H9/17 ,  H03H9/02228

摘要： Lamb wave resonator (100), comprising at least one piezoelectric layer (102) and a first electrode (106) placed against a first face of the piezoelectric layer and the pattern of which, in a plane parallel to the plane of the first face of the piezoelectric layer, comprises at least two fingers (108) and a contact arm (110), each of the fingers having a first side in contact with said arm and two other sides parallel to each other and spaced apart by a distance W given by the formula, in which: n ∈ N, valateral is the acoustic propagation velocity of the Lamb waves, n is the order of the resonant mode and f is the resonant frequency of the resonator, portions (114) of the piezoelectric layer, which lie in the plane of the first face, between the fingers of the first electrode, being at least partially etched.

摘要翻译： 包括至少一个压电层（102）和第一电极（106）的兰姆波谐振器（100），所述压电层（102）和第一电极（106）放置在压电层的第一面上，并且其图案在平行于第一面 所述压电层包括至少两个指状物（108）和接触臂（110），所述指状物中的每一个具有与所述臂接触的第一侧和彼此平行并且间隔开的距离W，所述距离W由 其中：n∈N，Valateral是兰姆波的声传播速度，n是谐振模的阶数，f是谐振器的谐振频率，压电层的部分（114） 在第一面的平面中，第一电极的指状物之间至少部分地被蚀刻。

公开(公告)号：EP2266203B1

公开(公告)日：2012-05-23

申请号：EP09745954.9

申请日：2009-04-16

申请人： STMicroelectronics SA

发明人： CATHELIN, Andreia ,  FLAMENT, Axel ,  KAISER, Andreas

IPC分类号： H03F1/02 ,  H03F3/60 ,  H03H15/00 ,  H04B1/00 ,  H04B1/04

CPC分类号： H04B1/0483 ,  H03F3/2175 ,  H03F3/602

摘要： Integrated circuit, incorporating an electronic device (PA), comprising input means (BE) for receiving a radio frequency digital signal (SCH), output means (BS) able to deliver a radio frequency analogue signal (SARF), and a processing stage coupled between the input means and the output means and comprising several parallel processing pathways (VTi), each processing pathway (VTi) including a voltage switching block (BLCi) whose input is coupled to the input means and a transmission line (LTi) substantially of the quarter wave type at the frequency of the radio frequency analogue signal coupled in series between the output of the voltage switching block and said output means.

公开(公告)号：EP2266203A1

公开(公告)日：2010-12-29

申请号：EP09745954.9

申请日：2009-04-16

申请人： STMicroelectronics SA

发明人： CATHELIN, Andreia ,  FLAMENT, Axel ,  KAISER, Andreas

IPC分类号： H03F1/02 ,  H03F3/60 ,  H03H15/00 ,  H04B1/00 ,  H04B1/04

CPC分类号： H04B1/0483 ,  H03F3/2175 ,  H03F3/602

摘要： Integrated circuit, incorporating an electronic device (PA), comprising input means (BE) for receiving a radio frequency digital signal (SCH), output means (BS) able to deliver a radio frequency analogue signal (SARF), and a processing stage coupled between the input means and the output means and comprising several parallel processing pathways (VTi), each processing pathway (VTi) including a voltage switching block (BLCi) whose input is coupled to the input means and a transmission line (LTi) substantially of the quarter wave type at the frequency of the radio frequency analogue signal coupled in series between the output of the voltage switching block and said output means.

公开(公告)号：EP2203976B1

公开(公告)日：2011-05-11

申请号：EP08842063.3

申请日：2008-10-22

申请人： STMicroelectronics SA ,  Centre National de la Recherche Scientifique

发明人： BELOT, Didier ,  CATHELIN, Andreia ,  SHIRAKAWA, Alexandre, Augusto ,  PHAM, Jean-Marie ,  JARY, Pierre ,  KERHERVE, Eric

IPC分类号： H03H9/02

CPC分类号： H03H9/17 ,  H03H9/02228

摘要： Lamb wave resonator (100), comprising at least one piezoelectric layer (102) and a first electrode (106) placed against a first face of the piezoelectric layer and the pattern of which, in a plane parallel to the plane of the first face of the piezoelectric layer, comprises at least two fingers (108) and a contact arm (110), each of the fingers having a first side in contact with said arm and two other sides parallel to each other and spaced apart by a distance W given by the formula, in which: n ∈ N, valateral is the acoustic propagation velocity of the Lamb waves, n is the order of the resonant mode and f is the resonant frequency of the resonator, portions (114) of the piezoelectric layer, which lie in the plane of the first face, between the fingers of the first electrode, being at least partially etched.