公开(公告)号：US20090212659A1

公开(公告)日：2009-08-27

申请号：US12431427

申请日：2009-04-28

申请人： Satoru MATSUDA ,  Michio Miura ,  Takashi Matsuda ,  Masanori Ueda

发明人： Satoru MATSUDA ,  Michio Miura ,  Takashi Matsuda ,  Masanori Ueda

IPC分类号： H01L41/04

CPC分类号： H03H9/0222 ,  H03H9/02818

摘要： An elastic boundary wave device includes a first medium with piezoelectricity, an electrode exciting an elastic wave and provided on the first medium, a second medium made of a different material from the first medium and provided on the first medium to cover the electrode, and a sound absorbing portion provided on the second medium.

摘要翻译： 弹性边界波装置包括具有压电性的第一介质，激发弹性波并设置在第一介质上的电极，由与第一介质不同的材料制成并设置在第一介质上以覆盖电极的第二介质，以及 设在第二介质上的吸音部。

公开(公告)号：US20100188173A1

公开(公告)日：2010-07-29

申请号：US12511162

申请日：2009-07-29

申请人： Satoru MATSUDA ,  Michio MIURA ,  Takashi MATSUDA

发明人： Satoru MATSUDA ,  Michio MIURA ,  Takashi MATSUDA

IPC分类号： H03H9/25 ,  H01L41/22

CPC分类号： H03H9/0222 ,  H03H3/08 ,  Y10T29/42

摘要： A first acoustic wave device includes a second acoustic wave device. The second acoustic wave device includes a substrate made of a piezoelectric material, a pair of interdigital electrodes formed on the substrate, each of the intergidital electrodes including a plurality of electrode fingers, and a adjustment medium. The adjustment medium includes at least a single layer and is formed on at least a part of the pair of the intergidital electrodes. The adjustment medium further includes a thick portion and a thin portion being null or thinner than the thick portion, an area of the thick portion opposed to a region being determined according to a predetermined characteristic value, the area including the intergital electrodes and a plurality of spaces between the electrode fingers adjacent each other.

摘要翻译： 第一声​​波装置包括第二声波装置。 第二声波装置包括由压电材料制成的基板，形成在基板上的一对叉指电极，每个中间电极包括多个电极指以及调节介质。 所述调整介质至少包括单层，并形成在所述一对所述直线电极的至少一部分上。 所述调整介质还包括厚部分和比所述厚部分更薄或更薄的薄部分，与根据预定特征值确定的区域相对的厚部分的面积，包括所述间隔电极的区域和多个 彼此相邻的电极指之间的空间。

公开(公告)号：US20130049533A1

公开(公告)日：2013-02-28

申请号：US13565161

申请日：2012-08-02

申请人： Satoru MATSUDA ,  Takashi MATSUDA ,  Michio MIURA

发明人： Satoru MATSUDA ,  Takashi MATSUDA ,  Michio MIURA

IPC分类号： H01L41/04

CPC分类号： H03H9/02834

摘要： An acoustic wave device includes: a comb-like electrode provided on a piezoelectric substrate; and a first medium that covers the comb-like electrode and has at least a silicon oxide film in which an element is doped, wherein sonic speed in the silicon oxide film in which the element is doped is lower than sonic speed in an undoped silicon oxide film.

摘要翻译： 声波装置包括：设置在压电基板上的梳状电极; 以及覆盖梳状电极并且至少具有掺杂有元素的氧化硅膜的第一介质，其中掺杂元素的氧化硅膜中的声速低于未掺杂的氧化硅中的声速 电影。

公开(公告)号：US20130093537A1

公开(公告)日：2013-04-18

申请号：US13610384

申请日：2012-09-11

申请人： Satoru MATSUDA ,  Takashi MATSUDA ,  Michio MIURA

发明人： Satoru MATSUDA ,  Takashi MATSUDA ,  Michio MIURA

IPC分类号： H03H9/64

CPC分类号： H03H9/02834 ,  H03H9/0222 ,  H03H9/02559 ,  H03H9/02842 ,  H03H9/64

摘要： An acoustic wave device includes: an electrode that is located on a substrate and excites an acoustic wave; and an oxide silicon film that is doped with an element and provided so as to cover the electrode, wherein a normalized reflectance obtained by normalizing a local maximum value of a reflectance when a light is caused to enter an upper surface of the oxide silicon film doped with the element by a reflectance when a light having a wavelength at the local maximum value is caused to enter an upper surface of the substrate directly is equal to or larger than 0.96.

摘要翻译： 声波装置包括：位于基板上并激发声波的电极; 以及氧化物硅膜，其被掺杂有元素并且被设置为覆盖电极，其中通过归一化使当光进入氧化硅膜的上表面的反射率的局部最大值被掺杂的归一化反射率 当使具有局部最大值的波长的光直接进入衬底的上表面时，元件具有反射率等于或大于0.96。

公开(公告)号：US20120313483A1

公开(公告)日：2012-12-13

申请号：US13593356

申请日：2012-08-23

申请人： Satoru MATSUDA ,  Michio MIURA ,  Takashi MATSUDA

发明人： Satoru MATSUDA ,  Michio MIURA ,  Takashi MATSUDA

IPC分类号： H01L41/04

CPC分类号： H03H9/02866 ,  H03H9/6483

摘要： An acoustic wave device includes a substrate, a dielectric film formed on the substrate and a pair of IDT electrodes opposing each other provided between the substrate and the dielectric film. At least one of the substrate and the dielectric film is piezoelectric. The IDT electrodes each include an electrode finger that extends in at least one direction. A film thickness of the dielectric film changes in a gap portion between a tip of the electrode finger of one of the IDT electrodes and the other opposing IDT electrode in the direction of extension of the electrode finger.

摘要翻译： 声波装置包括基板，形成在基板上的电介质膜和设置在基板和电介质膜之间的彼此相对的一对IDT电极。 基板和电介质膜中的至少一个是压电的。 IDT电极各自包括沿至少一个方向延伸的电极指。 电介质膜的膜厚在IDT电极之一的电极指的末端与电极指的延伸方向上的另一个相对的IDT电极之间的间隙部分发生变化。

公开(公告)号：US20100244624A1

公开(公告)日：2010-09-30

申请号：US12647071

申请日：2009-12-24

申请人： Satoru MATSUDA ,  Michio Miura ,  Takashi Matsuda

发明人： Satoru MATSUDA ,  Michio Miura ,  Takashi Matsuda

IPC分类号： H01L41/08 ,  H01L41/22 ,  H01L41/047 ,  B05D5/12

CPC分类号： H03H3/10 ,  H03H9/0222 ,  H03H9/02929

摘要： A method of producing an acoustic wave device includes: forming an interdigital electrode 3 on a piezoelectric substrate 2; forming a barrier film 4 so as to cover the interdigital electrode 3; forming a medium 5 on the barrier film 4; measuring a frequency characteristic of an acoustic wave excited by the interdigital electrode 3; and forming, in an excitation region, an adjustment region having a thickness different from other portions by patterning the barrier film 4 or further providing an adjustment film. When forming the adjustment region, an area T of the adjusting area is adjusted in accordance with the measured frequency characteristic.

摘要翻译： 制造声波器件的方法包括：在压电基片2上形成叉指电极3; 形成阻挡膜4以覆盖叉指电极3; 在阻挡膜4上形成介质5; 测量由叉指电极3激发的声波的频率特性; 以及通过对阻挡膜4进行图案化或进一步提供调整膜，在激励区域中形成具有与其它部分不同的厚度的调节区域。 在形成调整区域时，根据测定的频率特性调整调整区域的面积T.

公开(公告)号：US20110057922A1

公开(公告)日：2011-03-10

申请号：US12875424

申请日：2010-09-03

申请人： Tsukasa YASUDA ,  Ichiro MATSUMOTO ,  Satoru MATSUDA

发明人： Tsukasa YASUDA ,  Ichiro MATSUMOTO ,  Satoru MATSUDA

IPC分类号： G06F3/038 ,  H03F3/68

CPC分类号： H03F3/45183 ,  H03F3/45475 ,  H03F2200/375 ,  H03F2200/405 ,  H03F2200/411 ,  H03F2203/45101 ,  H03F2203/45512 ,  H03F2203/45674

摘要： A drive device according to the present invention includes a plurality of output amplifier circuits that are connected in parallel, a bias wire that supplies a bias voltage from a bias voltage supply source to the plurality of output amplifier circuits, a power supply wire that supplies a power supply voltage from a power supply voltage supply source to the plurality of output amplifier circuits, and a correction unit that superposes an offset voltage on the bias voltage so that a voltage difference between the power supply voltage and the bias voltage supplied to the plurality of output amplifier circuits is to be desirable.

摘要翻译： 根据本发明的驱动装置包括并联连接的多个输出放大器电路，将偏置电压从偏置电压源提供给多个输出放大器电路的偏置导线， 从电源电压源向多个输出放大器电路供电的电源电压;以及校正单元，其将偏置电压叠加在偏置电压上，使得电源电压与提供给多个输出放大器电路的偏置电压之间的电压差 输出放大器电路是理想的。

公开(公告)号：US20110148945A1

公开(公告)日：2011-06-23

申请号：US12967499

申请日：2010-12-14

申请人： Satoru MATSUDA

发明人： Satoru MATSUDA

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： H03M1/76 ,  G09G2310/027 ,  H03M1/661

摘要： A DAC includes a DAC unit that selects one of a plurality of selection voltages according to an input digital signal, and outputs the selected selection voltage as an analog signal, a first power-supply voltage terminal through which a first power-supply voltage is supplied to a first terminal of a transistor constituting the DAC unit upon power-up of the DAC unit, and a voltage supply control unit that detects a potential difference between the first power-supply voltage and a second voltage used to generate the selection voltages, outputs a voltage corresponding to the first power-supply voltage to a second terminal of the transistor constituting the DAC unit when the potential difference is larger than a predetermined value, and outputs a voltage corresponding to the second voltage to the second terminal of the transistor constituting the DAC unit when the potential difference is smaller than the predetermined value.

摘要翻译： DAC包括DAC单元，其根据输入数字信号选择多个选择电压中的一个，并且将所选择的选择电压作为模拟信号输出，第一电源电压端子，通过其提供第一电源电压 在DAC单元上电时，构成DAC单元的晶体管的第一端子，以及电压供给控制单元，其检测第一电源电压与用于产生选择电压的第二电压之间的电位差，输出 当所述电位差大于预定值时，将构成所述DAC单元的所述晶体管的第二端子的第一电源电压的电压输出到构成所述DAC单元的所述晶体管的所述第二端子 DAC单元，当电位差小于预定值时。

公开(公告)号：US20110007063A1

公开(公告)日：2011-01-13

申请号：US12825871

申请日：2010-06-29

申请人： Satoru MATSUDA

发明人： Satoru MATSUDA

IPC分类号： G09G5/00

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2310/0251 ,  G09G2310/0297

摘要： A driving circuit includes: output buffers provided to drive first and second groups of data lines, which are connected with pixels of a display panel, with drive voltage signals supplied to input terminals of the output buffers, respectively; first and second common portions; and a first short-circuiting section provided for each of the data lines of the first group to connect the input terminal of a corresponding one of the output buffers for the first group of data lines to the first common portion in response to a first connection control signal. A second short-circuiting section is provided for each of the data lines of the second group to connect the input terminal of a corresponding one of the output buffers for the second group of data lines to the second common portion in response to a second connection control signal.

摘要翻译： 一个驱动电路包括：输出缓冲器，用于驱动与显示面板的像素连接的第一和第二组数据线，驱动电压信号分别提供给输出缓冲器的输入端; 第一和第二公共部分; 以及为第一组的每个数据线提供的第一短路部分，用于响应于第一连接控制将第一组数据线的输出缓冲器的相应一个的输入端连接到第一公共部分 信号。 为第二组的每个数据线提供第二短路部分，以响应于第二连接控制将用于第二组数据线的输出缓冲器中的相应一个的输入端连接到第二公共部分 信号。