WO2006001125A1 - 圧電デバイス - Google Patents
圧電デバイス Download PDFInfo
- Publication number
- WO2006001125A1 WO2006001125A1 PCT/JP2005/008426 JP2005008426W WO2006001125A1 WO 2006001125 A1 WO2006001125 A1 WO 2006001125A1 JP 2005008426 W JP2005008426 W JP 2005008426W WO 2006001125 A1 WO2006001125 A1 WO 2006001125A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piezoelectric device
- external electrode
- lid
- piezoelectric
- main surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/10—Mounting in enclosures
- H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
- H03H9/105—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a cover cap mounted on an element forming part of the BAW device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/10—Mounting in enclosures
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
- H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
- H03H9/173—Air-gaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2201/00—Specific applications of microelectromechanical systems
- B81B2201/02—Sensors
- B81B2201/0271—Resonators; ultrasonic resonators
Definitions
- the present invention relates to a piezoelectric device including an element using a piezoelectric thin film such as a resonator or a filter.
- Patent Document 1 Japanese Unexamined Patent Application Publication No. 2004-17171
- Patent Document 2 JP 2001-94390 A
- a sealing member of a conductive bonding material is formed along the outer edges of the base substrate and the surface acoustic wave element, and bonded and sealed. This sealing member is not grounded.
- Each configuration has a problem of poor shielding performance.
- the heat generated in the filter is transmitted through the wiring and radiated from the external electrode to the mounting substrate.
- An object of the present invention is to provide a piezoelectric device that can improve shielding performance and heat dissipation while taking into account the actual situation.
- the piezoelectric device means a piezoelectric resonator or a piezoelectric filter using the same.
- the present invention provides a piezoelectric device configured as follows in order to solve the above problems.
- This piezoelectric device is of a type in which a lid and a piezoelectric device chip are overlapped and sealed.
- the piezoelectric device includes a first external electrode exposed only on a second main surface of the lid opposite to the first main surface facing the piezoelectric device chip, and the second main surface of the lid.
- a grounded second external electrode exposed between the lid and the piezoelectric device chip, and disposed around the entire periphery along the outer edge, and the lid and the piezoelectric device chip are joined and sealed. And a conductive bonding material bonded to the grounded second external electrode.
- the conductive bonding material surrounds the piezoelectric device element formed in the piezoelectric device chip. If the second external electrode is a ground terminal, the conductive bonding material is connected to the ground, and the piezoelectric device element can be electrostatically shielded.
- the heat generated in the piezoelectric device chip can be dissipated from the second substrate through the conductive bonding material which is not limited only by the first external electrode force.
- the second external electrode can be provided at any location on the outer edge of the lid.
- the external electrodes used for input / output of the piezoelectric device elements are assigned the first external electrode as appropriate, with emphasis on the electrical characteristics and withstand power, etc., and the second electrode is used as the ground external electrode in the remaining place.
- External electrodes can be arranged. Since the external device does not sacrifice the characteristics of the piezoelectric device, the characteristics of the piezoelectric device can be optimized.
- the first external electrode is arranged so that each of the four or more rectangular regions equally dividing the second main surface of the lid into a lattice shape includes the center of gravity of the rectangular region. Is done.
- the second main surface of the lid is equally divided into rectangular regions of 2 X 2 or more.
- the first external electrode is arranged at or near the center of each of the rectangular regions equally divided in a lattice shape, so that the pressure at the time of mounting becomes uniform, and the piezoelectric device Can be mounted parallel to the substrate. Thereby, the reliability of the electrical connection between the piezoelectric device and the substrate can be improved.
- the distance between the first external electrodes is substantially equal, and the heat transfer path from each part in the piezoelectric device to the substrate can be made as short as possible.
- the heat generated in the piezoelectric device is easily radiated to the substrate through the first external electrode. Therefore, the heat dissipation of the piezoelectric device can be improved.
- the second external electrode is arranged so as to include a vertex of the rectangular region.
- the second external electrode can be arranged at a position that is not biased as much as possible with respect to the first external electrode, so that the pressure and heat dissipation during mounting can be made uniform.
- a through hole in which a conductive material is disposed on an inner peripheral surface of a through hole penetrating between the first lid and the second main surface of the lid is provided.
- the conductive material and the first external electrode are joined to one end of the through hole.
- the conductive material and the electrode terminal of the element formed on the piezoelectric device chip are bonded to the other end of the through hole by the conductive bonding material.
- the heat generated in the piezoelectric device chip is radiated to the substrate via the electrode terminal, the through hole, and the first external electrode. According to the above configuration, heat dissipation can be improved.
- the through hole is filled with a filler in the through hole.
- the filler when the piezoelectric device is mounted, the filler can prevent the conductive material in the through-hole from melting and flowing out in contact with the solder and causing poor connection.
- the other end of the through hole is the most temperature of the piezoelectric device chip. It is connected to the electrode terminal formed in a portion where the rise is large or in the vicinity thereof.
- the piezoelectric device chip is supported by the support substrate and acoustically separated from the support substrate, and a piezoelectric thin film is disposed between a pair of opposing excitation electrodes. And a thin film part.
- the piezoelectric device chip is a surface acoustic wave device including a piezoelectric substrate and an IDT formed of a pair of comb-shaped excitation electrodes formed on the piezoelectric substrate.
- the piezoelectric device of the present invention can improve shielding performance and heat dissipation.
- FIG. 1 is a configuration diagram of a piezoelectric device. (Example)
- FIG. 2 is an explanation of a method for manufacturing a piezoelectric device. (Example)
- FIG. 3 is a graph of filter characteristics of a piezoelectric device. (Example)
- FIG. 4 is a configuration diagram of a piezoelectric device. (Modification 1)
- FIG. 5 is a configuration diagram of a piezoelectric device. (Modification 2)
- Electrode film (Piezoelectric device chip, excitation electrode)
- Electrode film piezoelectric device chip, excitation electrode
- Vibration part pieoelectric device element, thin film part
- the piezoelectric device 10 is formed by stacking and sealing a silicon substrate 12 on which an element is formed and a glass substrate 20 serving as a lid.
- the silicon substrate 12 includes a glass substrate 20 and A hole 13 removed by etching or the like is formed on the opposite surface.
- a vibrating part 19 in which a piezoelectric thin film 17 is sandwiched between electrode films 16 and 18 is formed.
- the vibration part 19 is floated in the internal space 40 and is acoustically separated.
- the A1 electrode films 16 and 18 and the A1N piezoelectric thin film 17 are deposited or deposited. It should be noted that the vibration part 19 is configured to be lifted from the silicon substrate 12 without providing the hole 13.
- a plurality of vibration parts 19, that is, resonators are connected in a ladder shape, and any one of ⁇ -type 7 elements, saddle-type 5 elements, etc.
- a ladder filter can be formed.
- pads 16 a and 18 a serving as electrode terminals are formed at positions facing a through hole 32 of the glass substrate 20 described later for connection to the outside.
- the glass substrate 20 is formed with through holes 32 and 33 in which a conductive material is disposed on the inner peripheral surface of a through hole that penetrates the glass substrate 20.
- the through-holes of the through-holes 32 and 33 can be formed by laser blasting or by sandblasting or etching after pattern formation with a photosensitive resin.
- the upper ends of the through holes 32 and 33 are joined to the external electrodes 22 and 23.
- By vapor deposition, sputtering, plating, etc. on the inner peripheral surface of the through hole and the periphery of the opening Through holes 32 and 33 and external electrodes 22 and 23 can be formed simultaneously by arranging a conductive material.
- first external electrodes 22 At the center of the glass substrate 20, four through holes 32 and external electrodes 22 (hereinafter also referred to as “first external electrodes 22") are arranged in a complete shape.
- the first external electrode 22 is exposed only on the upper surface of the glass substrate 20.
- a through hole 33 and an external electrode 23 (hereinafter also referred to as “second external electrode 23”) are arranged in a shape that is divided into approximately half.
- the second external electrode 23 includes not only a portion disposed on the upper surface of the glass substrate 20 but also a conductive material portion of the through hole 33 where the side force of the glass substrate 20 is exposed.
- the through holes of the through holes 32 and 33 may be filled and filled with the fillers 42 and 43 as indicated by chain lines.
- metal or resin is used for the fillers 42 and 43.
- Fillers 42 and 43 can be formed, for example, by depositing a metal mask and depositing Cu, forming a resist mask to make Cu plating, or using conductive dough (trade name) or insulating grease. Filling can be done by screen printing.
- the fillers 42 and 43 prevent a connection failure from occurring due to the conductive material in the through holes 32 and 33 melting and flowing out of the solder when the piezoelectric device 10 is mounted on the substrate. Further, the sealing reliability of the piezoelectric device 10 can be improved by airtightly filling the through hole 32 with the filler 42. If the through hole 33 is filled with the conductive filler 43, the area of the second external electrode 23 can be expanded.
- the silicon substrate 12 and the glass substrate 20 are bonded and sealed with metal films 14 and 30.
- the metal film 14 is formed over the entire periphery along the outer edge on the upper surface facing the glass substrate 20.
- a metal film 30 is formed on the lower surface facing the silicon substrate 12 over the entire circumference along the outer edge.
- the metal films 14, 30 contain at least one component of Cu and Sn. After a resist mask having a predetermined opening is formed on the surface of the silicon substrate 12 or the glass substrate 20 on which the metal films 14 and 30 are formed, the film can be easily formed in the range of 0.1 ⁇ to 50 / ⁇ m. The metal is deposited and lifted off. Then, the silicon substrate 12 and the glass substrate 20 are superposed, the metal films 14 and 30 are brought into contact with each other, and heated to form a solder alloy. This allows the silicon substrate 12 and glass The substrate 20 is bonded and sealed. Instead of Cu—Sn solder, Au—Sn solder, Ni—Sn solder, Ag—Sn solder, or the like may be used.
- the metal film 14 is also formed on the pads 16a and 18a, and the metal film 30 is also formed on the lower ends of the through holes 32 and 33. As a result, at the same time as sealing, the nods 16a, 18a and the through holes 32, 3
- a plurality of piezoelectric devices 10 can be manufactured simultaneously.
- a plurality of structures on the silicon substrate 12 side are integrally formed on the wafer 11.
- the metal film 14 formed for each piezoelectric device chip has a substantially constant width.
- the enlarged portion 15 is provided in a part of the same.
- the enlarged portion 15 has a shape corresponding to the lower end of the through-hole 33 to be divided, and is connected to and enlarged with the enlarged portion 15 of the adjacent piezoelectric device chip.
- a plurality of glass substrate 20 side configurations are integrally formed on the collective substrate 21.
- the through hole 33 and the second external electrode 23 to be divided are arranged on the boundary line between the adjacent glass substrates 20.
- the four first external electrodes 22 arranged at the center of the glass substrate 20 are arranged at or near the respective centers of the rectangular regions 21a to 21d that equally divide the upper surface of the glass substrate 20 into four grids.
- the external electrodes 22 may be arranged so as to include the centroids of the rectangular areas 21a to 21d, respectively, and the centroids of the external electrodes 22 may be arranged in a state where the centroid forces of the rectangular areas 21a to 2Id are slightly shifted.
- the first external electrodes 22 are arranged substantially evenly, the pressure at the time of mounting becomes uniform, and the piezoelectric device can be mounted parallel to the substrate. Thereby, the reliability of the electrical connection between the piezoelectric device 10 and the substrate can be improved. Further, the distances between the first external electrodes 22 are substantially equal, and each part force in the piezoelectric device 10 can shorten the heat transfer path to the substrate as much as possible. The heat generated in the piezoelectric device 10 is easily radiated to the substrate through the first external electrode 22. Therefore, the heat dissipation of the piezoelectric device 10 can be improved.
- the second external electrode 23 is disposed so as to include the vertices of the rectangular regions 21b and 21c. Place the second external electrode 23 as far as possible from the first external electrode 22 and mount it. The pressure and heat dissipation at the time can be made uniform.
- the wafer 11 and the collective substrate 21 are superposed and bonded by heating, and a plurality of piezoelectric devices 10 are integrally formed, and then the boundary lines are cut by dicing or the like to form individual piezoelectric devices 10. To separate.
- the through hole 33 and the second external electrode 23 arranged on the boundary line, that is, the cutting line are divided into two, and one cut surface of the through hole 33 and the second external electrode 23 is exposed to the outside.
- external electrodes 24 may be provided at corners adjacent to four glass substrates 12, and the external electrodes 24 may be divided into four. In this case, the two cut surfaces of the external electrode 24 are exposed to the outside.
- the sizes of the silicon substrate 12 and the glass substrate 20 are both 1.8 mm X 1.5 mm.
- the width of the metal film 14 (except for the enlarged film) formed along the outer edge is 50 / z m.
- the diameter of Snolee Honore 32, 33 is ⁇ , 200 / z m.
- FIG. 3 shows an example of the filter characteristics (S of the transmission side filter) of the piezoelectric device 10 configured as described above.
- the solid line shows the characteristics when the second external electrode 23 is not connected to ground.
- the dotted line indicates the characteristics when the second external electrode 23 is connected to the ground. It can be seen that the attenuation characteristics of the piezoelectric device 10 are improved by grounding the metal films 14 and 30 arranged along the outer edge over the entire circumference via the second external electrode 23.
- the piezoelectric device 10 configured as described above is disposed on the outer edge, and when the divided second external electrode 23 is used as a ground terminal and grounded, the metal is disposed over the entire circumference along the outer edge. Since the membranes 14 and 30 are not grounded and other partial force electrically independent floating electrodes, the attenuation characteristics of the filter are improved.
- the metal films 14 and 30 arranged over the entire circumference along the outer edge function as a shield when grounded, and prevent unnecessary radio waves from being emitted or captured. As a result, malfunction of the piezoelectric device 10 and malfunction of the device can be prevented.
- the second external electrode 23 is formed in common with the adjacent piezoelectric device chip, the area of the external electrode for ground connection can be reduced, and the chip area can be reduced.
- the conductive portion of the second external electrode 23 is exposed on the two surfaces of the glass substrate 20, the upper surface and the side surface, the mounting area is increased and the mounting strength is improved. The increase in resistance during mounting is suppressed, leading to a reduction in piezoelectric device loss.
- the first external electrodes 22 arranged in a complete state inside the piezoelectric device 10 are arranged uniformly without deviation. Therefore, the mounting pressure for each first external electrode 22 becomes equal, and the piezoelectric device 10 can be mounted in parallel to the substrate. Thereby, the reliability of the electrical connection between the piezoelectric device 10 and the substrate can be improved.
- the assignment of the terminal function to the external electrode is restricted by the no-turn layout of the piezoelectric device elements in the piezoelectric device 10. Since the ground terminal for shielding does not have to be assigned to the first external electrode 22 arranged without bias, the degree of freedom in assigning the terminals is increased accordingly. Therefore, the pattern layout of the piezoelectric device elements can be determined so as to be advantageous in the characteristics of the piezoelectric device 10.
- two or more sets of through-holes 33 and second external electrodes arranged on the outer edge and divided may be provided.
- the piezoelectric devices 10a can be mounted more evenly if they are arranged substantially point-symmetrically (substantially symmetrical vertically and horizontally).
- the first external electrode may be a circle, an ellipse, or a combination thereof.
- the sizes of the first external electrodes may all be the same or may be changed as appropriate.
- the number of first external electrodes may be appropriately set according to the number of resonators included in the piezoelectric device and the function of the piezoelectric device.
- the grounded second external electrode may be any of a combination of a circle, an ellipse, and a rectangle.
- the sizes of the second external electrodes may all be the same or may be changed as appropriate.
- a plurality of second external electrodes may be provided.
- a plurality of grounded second external electrodes may be arranged on one side of the lid.
- the shape of the second external electrode is not limited to a shape obtained by dividing a circle, and may be a shape obtained by dividing a rectangle. In this case, the position where the first external electrode is not located Since the grounded second external electrode can be disposed, the piezoelectric devices can be mounted evenly.
- the grounded second external electrode 53 may be exposed only on the second main surface 50 of the lid, like the first external electrode 52. .
- One or a plurality of grounded second external electrodes 53 may be provided along the sealing frame 51 as shown, or may be provided in the center of the second main surface of the lid.
- the shape of the first external electrode and the second external electrode is not limited to a circle, and may be an appropriate shape such as an ellipse or a rectangle.
- the second external electrode may be different in shape and size from the first external electrode.
- the external electrodes can be arranged substantially symmetrically in the vertical and horizontal directions, so that the piezoelectric devices can be mounted evenly.
- a ladder filter is formed.
- a lattice filter can be formed by connecting resonators to a lattice type. In this case, a balanced single balanced filter can be obtained.
- a multimode filter can be formed by forming a resonator as a multimode resonator. In this case, a filter with high selectivity can be obtained.
- a silicon substrate may be used instead of a glass substrate as a material for the lid.
- the linear expansion coefficient can be made the same between the silicon substrate on which the element is formed and the lid, the residual stress due to thermal shrinkage after soldering can be reduced, and the effect on the element characteristics can be reduced.
- the semiconductive silicon substrate serving as the lid is grounded via the conductive bonding material, unnecessary radio waves can be shielded.
- the present invention is applicable not only to a piezoelectric thin film filter (BAW) but also to a surface acoustic wave filter (SAW).
- BAW piezoelectric thin film filter
- SAW surface acoustic wave filter
- the piezoelectric device chip is supported by the support substrate and acoustically separated from the support substrate, and a piezoelectric thin film is disposed between a pair of opposing excitation electrodes. And a thin film portion.
- the piezoelectric device includes a piezoelectric substrate and a pair of comb-shaped excitation electrode forces IDT formed on the piezoelectric substrate.
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006528390A JPWO2006001125A1 (ja) | 2004-06-25 | 2005-05-09 | 圧電デバイス |
| GB0623407A GB2431512B (en) | 2004-06-25 | 2005-05-09 | Piezoelectric device |
| US11/641,890 US7436272B2 (en) | 2004-06-25 | 2006-12-20 | Piezoelectric device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-188843 | 2004-06-25 | ||
| JP2004188843 | 2004-06-25 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/641,890 Continuation US7436272B2 (en) | 2004-06-25 | 2006-12-20 | Piezoelectric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006001125A1 true WO2006001125A1 (ja) | 2006-01-05 |
Family
ID=35781663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/008426 Ceased WO2006001125A1 (ja) | 2004-06-25 | 2005-05-09 | 圧電デバイス |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7436272B2 (ja) |
| JP (1) | JPWO2006001125A1 (ja) |
| GB (1) | GB2431512B (ja) |
| WO (1) | WO2006001125A1 (ja) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007235481A (ja) * | 2006-02-28 | 2007-09-13 | Kyocera Kinseki Corp | 圧電振動子の容器 |
| JP2008005241A (ja) * | 2006-06-22 | 2008-01-10 | Murata Mfg Co Ltd | フィルタ装置 |
| JP2011151762A (ja) * | 2009-12-26 | 2011-08-04 | Nippon Dempa Kogyo Co Ltd | 水晶振動子 |
| JP4798222B2 (ja) * | 2006-04-07 | 2011-10-19 | 株式会社村田製作所 | 電子部品の接合構造およびその製造方法 |
| JP2012069954A (ja) * | 2011-10-05 | 2012-04-05 | Mitsubishi Electric Corp | 基板間接続構造およびパッケージ |
| JP2012165299A (ja) * | 2011-02-09 | 2012-08-30 | Nippon Dempa Kogyo Co Ltd | 表面実装用の圧電デバイス |
| JP2016152612A (ja) * | 2015-02-19 | 2016-08-22 | 太陽誘電株式会社 | 弾性波デバイス |
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| JP6261867B2 (ja) * | 2013-01-25 | 2018-01-17 | 太陽誘電株式会社 | 弾性波デバイスの製造方法 |
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| JP6848953B2 (ja) * | 2018-11-26 | 2021-03-24 | 株式会社大真空 | 圧電振動デバイス |
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| JP2007235481A (ja) * | 2006-02-28 | 2007-09-13 | Kyocera Kinseki Corp | 圧電振動子の容器 |
| JP4798222B2 (ja) * | 2006-04-07 | 2011-10-19 | 株式会社村田製作所 | 電子部品の接合構造およびその製造方法 |
| JP2008005241A (ja) * | 2006-06-22 | 2008-01-10 | Murata Mfg Co Ltd | フィルタ装置 |
| JP2011151762A (ja) * | 2009-12-26 | 2011-08-04 | Nippon Dempa Kogyo Co Ltd | 水晶振動子 |
| US8390180B2 (en) | 2009-12-26 | 2013-03-05 | Nihon Dempa Kogyo Co., Ltd. | Surface mounted crystal resonator |
| JP2012165299A (ja) * | 2011-02-09 | 2012-08-30 | Nippon Dempa Kogyo Co Ltd | 表面実装用の圧電デバイス |
| JP2012069954A (ja) * | 2011-10-05 | 2012-04-05 | Mitsubishi Electric Corp | 基板間接続構造およびパッケージ |
| US10243536B2 (en) | 2013-12-27 | 2019-03-26 | Murata Manufacturing Co., Ltd. | Elastic wave device and manufacturing method thereof |
| JP2016152612A (ja) * | 2015-02-19 | 2016-08-22 | 太陽誘電株式会社 | 弾性波デバイス |
| JPWO2016159018A1 (ja) * | 2015-03-31 | 2018-02-01 | 株式会社村田製作所 | 共振装置 |
| WO2016158056A1 (ja) * | 2015-03-31 | 2016-10-06 | 株式会社村田製作所 | 共振装置 |
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| WO2016159018A1 (ja) * | 2015-03-31 | 2016-10-06 | 株式会社村田製作所 | 共振装置 |
| JP7284683B2 (ja) | 2018-10-18 | 2023-05-31 | スカイワークス ソリューションズ,インコーポレイテッド | バルク弾性波コンポーネントと無線通信デバイス |
| JP2020065256A (ja) * | 2018-10-18 | 2020-04-23 | スカイワークス ソリューションズ, インコーポレイテッドSkyworks Solutions, Inc. | バルク弾性波コンポーネントとそのプラズマダイシングの方法 |
| US12143091B2 (en) | 2018-10-18 | 2024-11-12 | Skyworks Solutions, Inc. | Methods of plasma dicing bulk acoustic wave components |
| US11811385B2 (en) | 2018-10-18 | 2023-11-07 | Skyworks Solutions, Inc. | Bulk acoustic wave component with conductor extending laterally from via |
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| KR20220126741A (ko) * | 2020-02-26 | 2022-09-16 | 가부시키가이샤 무라타 세이사쿠쇼 | 압전 디바이스 |
| WO2021172259A1 (ja) * | 2020-02-26 | 2021-09-02 | 株式会社村田製作所 | 圧電デバイス |
| KR102744914B1 (ko) | 2020-02-26 | 2024-12-19 | 가부시키가이샤 무라타 세이사쿠쇼 | 압전 디바이스 |
| US12439823B2 (en) * | 2020-02-26 | 2025-10-07 | Murata Manufacturing Co., Ltd. | Piezoelectric device |
| WO2024047745A1 (ja) * | 2022-08-30 | 2024-03-07 | 京セラ株式会社 | 振動デバイス |
Also Published As
| Publication number | Publication date |
|---|---|
| US7436272B2 (en) | 2008-10-14 |
| US20070096605A1 (en) | 2007-05-03 |
| JPWO2006001125A1 (ja) | 2008-04-17 |
| GB2431512B (en) | 2008-05-21 |
| GB0623407D0 (en) | 2007-01-03 |
| GB2431512A (en) | 2007-04-25 |
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