公开(公告)号：US20040226162A1

公开(公告)日：2004-11-18

申请号：US10806148

申请日：2004-03-23

申请人： FUJITSU MEDIA DEVICES LIMITED ,  FUJITSU LIMITED ,  NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

发明人： Michio Miura ,  Takashi Matsuda ,  Yoshio Satoh ,  Masanori Ueda ,  Hideki Takagi

IPC分类号： H04R031/00

CPC分类号： H03H3/08 ,  H03H9/02574 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/49007 ,  Y10T29/49016 ,  Y10T29/49126

摘要： A method of manufacturing a surface acoustic device that has a surface acoustic wave filter including comb-like electrodes, electrode pads, and wiring patterns formed on a joined substrate produced by joining a piezoelectric substrate and a supporting substrate to each other. This method includes the steps of: activating at least one of the joining surfaces of the piezoelectric substrate and the supporting substrate; and joining the piezoelectric substrate and the supporting substrate in such a manner that the activated joining surfaces face each other.

摘要翻译： 一种表面声学装置的制造方法，其具有包括梳状电极，电极焊盘和布线图案的表面声波滤波器，所述梳状电极，电极焊盘和布线图案形成在通过将压电基板和支撑基板彼此接合而制成的接合基板上。 该方法包括以下步骤：激活压电衬底和支撑衬底的至少一个接合表面; 以及使活化的接合面彼此面对的方式接合压电基板和支撑基板。

公开(公告)号：US20030214372A1

公开(公告)日：2003-11-20

申请号：US10437908

申请日：2003-05-15

申请人： FUJITSU MEDIA DEVICES LIMITED ,  FUJITSU LIMITED

发明人： Michio Miura ,  Masahiko Imai ,  Takashi Matsuda ,  Masanori Ueda ,  Osamu Ikata

IPC分类号： H03H009/64

CPC分类号： H03H9/6436 ,  H03H9/6483 ,  H03H9/725

摘要： A surface acoustic wave device includes multiple SAW resonators formed on a piezoelectric substrate and connected in a ladder arrangement, the piezoelectric substrate having a polarization inverted region on which either a series-arm resonator or a parallel-arm resonator is formed.

摘要翻译： 表面声波装置包括形成在压电基板上并以梯形布置连接的多个SAW谐振器，压电基板具有在其上形成有串联臂谐振器或并联臂谐振器的偏振反转区域。

公开(公告)号：US20030117240A1

公开(公告)日：2003-06-26

申请号：US10316089

申请日：2002-12-11

申请人： FUJITSU MEDIA DEVICES LIMITED

发明人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata

IPC分类号： H03H009/64

CPC分类号： H03H9/6436 ,  H03H9/14547 ,  H03H9/14567 ,  H03H9/1457 ,  H03H9/6483

摘要： A surface acoustic wave resonator includes a piezoelectric substrate, and a SAW resonator having an interdigital transducer. The interdigital transducer satisfies 0.15LnullWnull0.45L where W is the total of widths of all electrode fingers that form the interdigital transducer, and L is a length of the said interdigital transducer in a direction of SAW propagation.

摘要翻译： 声表面波谐振器包括压电基片和具有叉指式换能器的SAW谐振器。 叉指换能器满足0.15L <= W <= 0.45L，其中W是形成叉指换能器的所有电极指的总宽度，L是所述叉指换能器在SAW传播方向上的长度。

公开(公告)号：US20040212453A1

公开(公告)日：2004-10-28

申请号：US10830023

申请日：2004-04-23

申请人： FUJITSU MEDIA DEVICES LIMITED & FUJITSU LIMITED

发明人： Jun Tsutsumi ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda

IPC分类号： H03H009/70

CPC分类号： H03H9/0576 ,  H03H3/08 ,  H03H9/0038 ,  H03H9/6483 ,  H03H9/72 ,  H03H9/725

摘要： A duplexer includes a ladder filter and a multimode filter that are formed on the same surface of a predetermined substrate. In this duplexer, a first comb-like electrode of the ladder filter and a second comb-like electrode of the multimode filter have the same layer structure with the same film thickness. The first comb-like electrode and the second comb-like electrode are formed with single-layer films mainly containing aluminum. The relationship among the film thickness h of the first comb-like electrode and the second comb-like electrode, the center frequency f1 of the frequency band of the ladder filter, and the center frequency f2 of the frequency band of the multimode filter, is expressed as:300nullhnullf1null480300nullhnullf2null430.

摘要翻译： 双工器包括形成在预定基板的相同表面上的梯形滤波器和多模式滤波器。 在该双工器中，梯形滤波器的第一梳状电极和多模滤波器的第二梳状电极具有相同的膜厚度的相同的层结构。 第一梳状电极和第二梳状电极由主要含有铝的单层膜形成。 第一梳状电极和第二梳状电极的膜厚度h，梯形滤波器的频带的中心频率f1和多模式滤波器的频带的中心频率f2之间的关系是 表示为：300 <= hxf1 <= 480 300 <= hxf2 <= 430。

公开(公告)号：US20040212452A1

公开(公告)日：2004-10-28

申请号：US10827337

申请日：2004-04-20

申请人： FUJITSU MEDIA DEVICES LIMITED ,  FUJITSU LIMITED

发明人： Jun Tsutsumi ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda

IPC分类号： H03H009/70 ,  H03H009/64

CPC分类号： H03H9/725 ,  H03H9/0038 ,  H03H9/0576 ,  H03H9/6483 ,  H03H9/72

摘要： A duplexer includes two surface acoustic wave filters that are formed on one substrate, at least one of the two surface acoustic wave filters being a ladder filter. In this duplexer, the positional difference between the centers in the surface acoustic wave propagating direction of each two neighboring comb-like electrodes among comb-like electrodes that form series-arm resonators in the ladder filter is equal to or smaller than a fourth of the length in the propagating direction of the comb-like electrode having the larger number of pairs of electrode fingers of each two neighboring comb-like electrodes.

摘要翻译： 双工器包括形成在一个基板上的两个表面声波滤波器，两个声表面波滤波器中的至少一个是梯形滤波器。 在这种双工器中，在梯形滤波器中形成串联臂谐振器的梳状电极中每两个相邻的梳状电极的表面声波传播方向的中心之间的位置差等于或小于 每两个相邻的梳状电极具有较大数量的电极指对的梳状电极的传播方向上的长度。

公开(公告)号：US20040075511A1

公开(公告)日：2004-04-22

申请号：US10682917

申请日：2003-10-14

申请人： FUJITSU MEDIA DEVICES LIMITED ,  FUJITSU LIMITED

发明人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Masanori Ueda

IPC分类号： H03H009/64

CPC分类号： H03H9/02685 ,  H03H9/02913 ,  H03H9/02992 ,  H03H9/643 ,  H03H9/6436 ,  H03H9/6476 ,  H03H9/6483 ,  H03H9/6489 ,  H03H9/725

摘要： A multi-mode surface acoustic wave filter device includes: a piezoelectric substrate; at least one input IDT (interdigital transducer) and at least one output IDT that are formed on the piezoelectric substrate; reflectors that are formed on the piezoelectric substrate and arranged on the external sides of the input IDT and the output IDT; an input terminal that supplies input signals to the input IDT; and an output terminal that receives output signals from the output IDT. In this multi-mode surface acoustic wave filter, the input terminal and the output terminal extend in the same direction.

摘要翻译： 一种多模式声表面波滤波器装置，包括：压电基片; 形成在所述压电基板上的至少一个输入IDT（叉指式换能器）和至少一个输出IDT; 形成在压电基板上并布置在输入IDT和输出IDT的外侧上的反射器; 输入端，其向输入IDT提供输入信号; 以及从输出IDT接收输出信号的输出端子。 在该多模式声表面波滤波器中，输入端子和输出端子沿相同方向延伸。

公开(公告)号：US20040041496A1

公开(公告)日：2004-03-04

申请号：US10653213

申请日：2003-09-03

申请人： FUJITSU MEDIA DEVICES LIMITED ,  FUJITSU LIMITED

发明人： Masahiko Imai ,  Michio Miura ,  Takashi Matsuda ,  Masanori Ueda ,  Osamu Ikata

IPC分类号： H02N002/00

CPC分类号： H03H3/10 ,  H03H9/02574 ,  H03H9/02622 ,  H03H9/02834 ,  H03H9/6483

摘要： A surface acoustic wave device includes a piezoelectric substrate on which resonators having comb-like electrodes are formed; and a silicon substrate that is directly bonded to the piezoelectric substrate and is less expansive than the piezoelectric substrate, a cavity being formed in the silicon substrate and being located below at least one of the resonators.

摘要翻译： 声表面波器件包括其上形成有梳状电极的谐振器的压电基片; 以及直接接合到所述压电基板并且比所述压电基板更不膨胀的硅基板，在所述硅基板中形成有位于所述谐振器中的至少一个谐振器的空腔。

公开(公告)号：US20040251990A1

公开(公告)日：2004-12-16

申请号：US10823648

申请日：2004-04-14

申请人： FUJITSU MEDIA DEVICES LIMITED ,  FUJITSU LIMITED

发明人： Masanori Ueda ,  Osamu Kawachi ,  Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Yoshio Satoh

IPC分类号： H03H009/64

CPC分类号： H03H9/6436 ,  H03H9/14538 ,  H03H9/25 ,  H03H9/6433 ,  H03H9/6489

摘要： Efficient transverse energy confinement, and provision of a surface acoustic wave filter having preferable characteristics of both insertion loss and shape factor are obtained. In the surface acoustic wave filter, electrode fingers of one comb electrode are laid in a state of being inserted to the electrode fingers of the other comb electrode, and a thick film thicker than each plurality of electrode fingers is produced in a partial area of the bus bar, and a tip gap is provided between the top of each plurality of electrode fingers and the end face of the opposed bus bar, with a distance therebetween set not greater than 0.2null (where, null is one period of the comb electrode).

摘要翻译： 获得有效的横向能量限制，并且提供具有插入损耗和形状系数都优选的特性的表面声波滤波器。 在表面声波滤波器中，一个梳状电极的电极指状物被插入到另一梳状电极的电极指的状态，并且在该多个电极指的部分区域中产生厚于多个电极指的厚膜 汇流条，并且在每个多个电极指的顶部和相对的母线的端面之间设置有尖端间隙，其间的距离设置为不大于0.2λ（其中，λ是梳状电极的一个周期） 。

公开(公告)号：US20040251792A1

公开(公告)日：2004-12-16

申请号：US10852104

申请日：2004-05-25

申请人： Fujitsu Media Devices Limited & Fujitsu Limited

发明人： Takashi Matsuda ,  Jun Tsutsumi ,  Shogo Inoue ,  Masanori Ueda

IPC分类号： H03H009/145

CPC分类号： H03H9/1071 ,  H03H9/02984 ,  H03H9/14538

摘要： A surface acoustic wave element includes: metal patterns that include interdigital transducers, each of the metal patterns being formed with a first alloy or multi-layer film of metals having different standard electrode potentials; and metal films each formed with a second alloy or multi-layer film containing metals having different standard electrode potentials from the standard electrode potentials of the metals forming the first alloy or multi-layer film, the metal films being formed at least on a part of the regions other than the regions corresponding to the electrode fingers of the interdigital transducers of all the metal patterns that are electrically independent of one another.

摘要翻译： 表面声波元件包括：包括叉指式换能器的金属图案，每个金属图案由具有不同标准电极电位的金属的第一合金或多层膜形成; 以及金属膜，其各自由形成第一合金或多层膜的金属的标准电极电位的第二合金或多层膜形成，所述第二合金或多层膜含有不同标准电极电位的金属，所述金属膜至少形成在 除了对应于彼此电独立的所有金属图案的叉指换能器的电极指的区域之外的区域。

公开(公告)号：US20040233019A1

公开(公告)日：2004-11-25

申请号：US10849151

申请日：2004-05-20

申请人： FUJITSU MEDIA DEVICES LIMITED ,  FUJITSU LIMITED

发明人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Masanori Ueda

IPC分类号： H03H009/64

CPC分类号： H03H9/6493 ,  H03H7/1708 ,  H03H9/0538 ,  H03H9/14597 ,  H03H9/6426 ,  H03H9/6433 ,  H03H9/6436 ,  H03H9/725

摘要： A surface acoustic wave filter includes: an input interdigital transducer and an output interdigital transducer that are formed on a piezoelectric substrate; a capacitance that is provided between the input terminal of the input interdigital transducer and the output terminal of the output interdigital transducer; a first common ground terminal that connects the ground terminal of the input interdigital transducer and the ground terminal of the output interdigital transducer; and an inductance that is provided between the first common ground terminal and a ground.

摘要翻译： 表面声波滤波器包括：形成在压电基板上的输入叉指式换能器和输出叉指式换能器; 提供在输入叉指式换能器的输入端和输出叉指式换能器的输出端之间的电容; 连接输入叉指式换能器的接地端子和输出叉指式换能器的接地端子的第一公共接地端子; 以及设置在第一公共接地端子和地之间的电感。