WO2010006558A1 - 微型麦克风、微型麦克风的保护框架及其制造方法 - Google Patents
微型麦克风、微型麦克风的保护框架及其制造方法 Download PDFInfo
- Publication number
- WO2010006558A1 WO2010006558A1 PCT/CN2009/072817 CN2009072817W WO2010006558A1 WO 2010006558 A1 WO2010006558 A1 WO 2010006558A1 CN 2009072817 W CN2009072817 W CN 2009072817W WO 2010006558 A1 WO2010006558 A1 WO 2010006558A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- protective frame
- cavity
- substrate
- square
- microphone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
- H05K13/046—Surface mounting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
- B23P17/04—Metal-working operations, not covered by a single other subclass or another group in this subclass characterised by the nature of the material involved or the kind of product independently of its shape
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/04—Microphones
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49005—Acoustic transducer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4957—Sound device making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49993—Filling of opening
Definitions
- the invention relates to a miniature microphone, in particular to a micro-microphone with a good shielding effect, a low cost and a simple manufacturing process, and a protective frame in the micro-microphone. Its manufacturing method.
- Patent Document 1 discloses a condenser microphone having shielding performance.
- the condenser microphone 10 mainly includes a frame-like frame 12, a circuit substrate 13, a contact spring 14, a back plate 15, a spacer 17, a diaphragm plate 18, and a cover 19.
- the frame 12 serves as a skeleton of the condenser microphone 10, and a film-shaped conductive layer 12b is disposed on the concave surface 12a formed on the outer surface of the frame 12, on the upper surface and the lower surface of the frame 12.
- the surface is formed with an upper conductive layer and a lower conductive layer, respectively.
- the frame body 12 and the cover body 19 are electrically connected by an upper conductive layer, and the frame body 12 and the ground side electrode on the circuit substrate 13 are electrically connected by a lower conductive layer.
- the cover body 19, the frame body 12 and the circuit board 13 constitute the housing of the condenser microphone, so that the circuit in the housing 12 is electromagnetically shielded.
- Patent Document 1 also describes a method of processing the casing 12 in the above-described condenser microphone.
- a plurality of hole portions 22 required for processing the frame are formed at a predetermined pitch in the longitudinal and lateral directions on the plate of one circuit board.
- a plurality of long holes 30b and 30c for forming the concave surface 12a and the conductive layer 12b are formed at a predetermined pitch around the respective hole portions 22.
- a conductive adhesive or a conductive paste is filled or applied to the long holes 30b and 30c to form a conductive layer 12b.
- cutting is performed along the center line of the long holes 30b, 30c, thereby manufacturing the frame 12 provided with the conductive layer on the outer side surface.
- the processing methods of this frame have the following disadvantages: (1) The hole portions and long holes required for processing such a frame are generally processed by stamping, drilling, or milling, that is, CNC, etc., so the machining process Complex; (2) Long holes need to be machined around the frame, which must occupy the space of the plate. Reduce material utilization.
- the conductive layer that acts as an electromagnetic shielding is placed on the inner side of the frame, although the problems in the processing method of the above frame can be partially solved, the conductive layer may easily contact with the electronic components in the frame to cause a short circuit. The problem.
- Patent Document 1 Chinese Patent Publication No. CN1909746A.
- the present invention has been made to solve the above problems in the prior art, and an object thereof is to provide a miniature microphone, which uses a circuit board material as a protection frame for a miniature microphone, has a good shielding effect, and has low cost and is manufactured. Simple process.
- Another object of the present invention is to provide a protective frame in a miniature microphone, which is provided with a metal shielding layer on the inner side of the base portion, an insulating mechanism, a shielding performance, and a micro microphone. Internal short circuit.
- Still another object of the present invention is to provide a protective frame and a method of manufacturing the same, which is simple in manufacturing process
- a micro microphone includes: a circuit board substrate located at an upper portion of the micro microphone, and provided at a predetermined position on one side of the circuit board substrate a plurality of pads for mounting electrical components at a predetermined position on the other side thereof; a protective frame having a cavity formed at a central portion thereof and having a cylindrical shape with open ends, in which various components can be mounted
- the outer side of the protection frame is a base portion, a first metal shielding layer is disposed on an inner surface of the base portion, and a shielding layer is disposed on the inner side of the first metal shielding layer to shield the components from the first metal
- the insulating mechanism is an insulating layer formed of a resin material or a solder resist formed on the entire inner surface of the first metal shield layer.
- the insulating mechanism is a protruding portion that integrally protrudes from a central portion of the four inner surfaces of the base portion toward the cavity side, and the protruding portion is in the protective frame The height direction is extended.
- the insulating mechanism is an arc-shaped protruding portion that faces the cavity at four corners of the cavity, and the protruding portion is in a height direction of the protective frame. Extended settings.
- the metal shield layer and the insulating layer are provided inside the protective frame, the material is saved and the manufacturing is simple, and the electromagnetic shielding function and the internal electrical short circuit can be reliably realized.
- the present invention provides a protective frame in a miniature microphone, characterized in that a cavity is formed in a central portion of the protective frame and has a cylindrical shape with both ends open, and Each of the components may be mounted on the cavity portion, the outer side of the protective frame is a base portion, a first metal shielding layer is disposed on an inner surface of the base portion, and a space is disposed on an inner side of the first metal shielding layer An insulating mechanism that electrically insulates each component from the first metal shield layer.
- the metal shield layer and the insulating layer are provided inside, the material is saved, and the manufacturing is simple, and the electromagnetic shielding function can be reliably realized and the internal electrical short circuit can be prevented.
- a method for manufacturing a protective frame in a miniature microphone includes the following steps: (1) preparing a resin insulating material as a substrate, having a predetermined thickness and a prescribed a square substrate having an area; (2) processing a plurality of square hole portions at a predetermined pitch in the longitudinal direction and the lateral direction of the square substrate; (3) the entire plurality of hole portions formed on the square substrate An inner surface, respectively forming a first metal shielding layer; (4) completely filling the insulating material for forming the insulating layer in the plurality of holes; (5) forming a predetermined width on both side surfaces of the square substrate Covering an extension of a portion of the insulating material and the entire end surface of the first metal shield layer, the extension portion being formed in a square shape; (6) processing a square space in a center of the filled insulating material portion according to a prescribed size a cavity, the length and width dimensions of the cavity are smaller than the length and width dimensions of the inner edge of
- the square substrate is cut along the horizontal and vertical directions to cut out a separate protective frame.
- a method for manufacturing a protective frame in a miniature microphone includes the following steps: (1) preparing a square substrate having a predetermined thickness and a predetermined area as a substrate of a resin insulating material. (2) A plurality of adjacent small holes are formed by a drilling process in a predetermined position at a predetermined interval in the longitudinal and lateral directions of the square substrate, and the small holes are formed in the longitudinal direction and the width direction. The contours are overlapped to form a slit of a certain length.
- the contours between the adjacent two small holes do not overlap to retain the shorter-sized connecting ribs; (3) in the plurality of holes Forming a first metal shielding layer on the entire inner surface of the portion; (4) completely filling the insulating material in the plurality of holes; (5) forming the covering material with a prescribed width on both side surfaces of the substrate a portion of the end portion of the first metal shield layer; (6) processing a square cavity along a substantially central position of the filled insulating material in a predetermined size, the cavity having a length and width dimension smaller than the above steps (5) The length and width dimensions of the inner edge of the formed extension; (7) cutting the square substrate in the lateral and longitudinal directions to cut out individual protective frames.
- the manufacturing process is simple, the material utilization rate is improved, and the production cost can be reduced.
- Fig. 1 is a perspective view showing a specific structure of a conventional micro microphone.
- FIG. 2 is a cross-sectional view showing a specific structure of a conventional micro microphone.
- FIG 3 is a cross-sectional view showing an overall configuration of a micro microphone according to a first embodiment of the present invention.
- Fig. 4 is a cross-sectional view showing an overall configuration of a protective frame used in the micro-microphone according to the first embodiment of the present invention.
- FIGS. 5 to 7 are cross-sectional views showing a protective frame in a manufacturing process.
- FIG. 8 is a cross-sectional view showing a miniature microphone according to a first embodiment in an assembly process.
- FIG. 9 is a cross-sectional view showing the micro-microphone according to the first embodiment after cutting.
- 10 to 13 are cross-sectional views showing the above-described protective frame structure manufactured by another method.
- Fig. 14 is a cross-sectional view showing a specific configuration of a protective frame in a micro microphone according to a second embodiment of the present invention.
- Fig. 15 is a cross-sectional view showing a specific configuration of a protective frame in a micro microphone according to a third embodiment of the present invention.
- the micro-microphone includes: a circuit board substrate 1 mounted on an upper portion of the micro-microphone, and a plurality of pads 11 are provided in advance at a predetermined position on one side of the circuit board substrate 1
- An electrical component such as the signal processing element 12 is mounted at a predetermined position on the other side of the circuit board substrate 1; a cylindrical protective frame 2 having both ends opened, and the outer side of the protective frame 2 is a base portion 20 made of, for example, a resin material.
- a first metal shield layer 22 is provided along the entire inner wall on the inner surface of the base portion 20, and an insulating material such as an insulating material such as resin is further disposed on the entire inner surface of the first metal shield layer 22.
- the layer 2 3, the space surrounded by the insulating layer 23 constitutes the cavity 24 of the protective frame 2, and an extension portion 21 made of a metal material is provided around the upper and lower end faces of the protective frame 2, and the extending portion 21 covers the protective frame.
- a second metal shield layer 31 is formed on the entire surface of the bottom plate 3 on the side to which the protective frame 2 is joined.
- the circuit board substrate 1 and the bottom plate 3 are respectively mounted on the upper and lower portions of the protective frame 2 to form a housing structure of a micro-microphone having an electromagnetic shielding function.
- a capacitor assembly and a conductive member 4 for performing acoustic-electrical signal conversion are mounted inside the protective frame 2, and the capacitor assembly includes a diaphragm 51, a plate 52, and an isolating diaphragm 53, wherein the diaphragm 51 generally includes one metal ring and one diaphragm, and at least one hole is generally provided in the plate 52, which are common knowledge in the art and will not be described in detail herein.
- a conductive member 4 made of, for example, an elastic material is provided, one end of which is electrically connected to the conductive portion on the other side of the circuit board substrate 1, and the other end thereof
- the plate 52 as an input electrode in the capacitor assembly is electrically connected such that an external sound signal obtained by the capacitor assembly can be input to the signal processing element 12 soldered to the board substrate 1.
- a third metal is disposed around a side of the circuit board substrate 1 that is connected to the protective frame 2 at a position opposite to the extending portion 21 of the protective frame 2. Shield 13 . Through the third metal shield layer 13 and the second metal shield layer 31 provided on the bottom plate 3, a good electrical connection can be maintained between the protective frame 2 and the circuit board substrate 1 and the bottom plate 3, achieving a reliable electromagnetic shielding effect.
- the shape of the micro-microphone and the protective frame 2 of the present embodiment is square, but the shape may be other shapes such as a circle, an ellipse, a polygon, etc., and the cavity of the protective frame 2 may also be
- the shape of the first shield layer 22, the second shield layer 31, the third shield layer 13, the insulating layer 23, and the extending portion 21 may be other shapes such as an annular shape.
- the insulating layer 23 may also be composed of a solder resist applied on the entire surface of the first shield layer 22.
- a square substrate having a predetermined thickness and a large area, for example, a resin insulating material as a substrate is prepared
- a plurality of square hole portions 24 are machined in a longitudinal direction and a lateral direction of a large-area square substrate at a predetermined pitch, and here, stamping, drilling, or milling can be used.
- the hole portion 24 is processed by a method such as a CNC process.
- the first metal shield layer 22 is formed by a process such as electroless copper plating or plating.
- the plurality of holes 24 are completely filled with an insulating material such as a resin for constituting the insulating layer in the future.
- a square cavity 24 is formed in the center of the filled insulating material portion by a method such as stamping, drilling, or milling (ie, a CNC process), and the length and width of the cavity 24 are Both are slightly smaller than the length and width dimensions of the inner edge of the extension portion 21 formed in the above-described steps, so that a part of the insulating layer 23 can be seen in a plan view or a bottom view.
- the protective frame 2 having a metal shield layer used in a plurality of miniature microphones has been manufactured. Then, the substrate can be directly cut to form a separate protective frame 2, and the capacitor assembly, the conductive member 4, and the like are assembled into the protective frame 2, and then the circuit board substrate 1 and the bottom plate 3 are mounted on the upper and lower portions thereof. , thus forming a miniature microphone.
- the protective frame 2 used in the micro-microphone according to the present embodiment has an electromagnetic shielding function, a strict square is not required, and therefore, the shape of the protective frame 2 is a square or a circle with rounded corners.
- the shape of the arc or the like can also be manufactured by the following manufacturing method.
- a method of manufacturing the protective frame 2 having such a shape will be described with reference to Figs. 10 to 13 .
- the manufacturing method of the square protective frame with rounded corners has been described as an example here, it is needless to say that the following manufacturing method is also applicable to a circular arc, an elliptical shape or the like having a circular arc shape.
- a large-area square substrate in which a resin insulating material is used as a substrate is prepared.
- a plurality of adjacent small holes 25 are formed by a drilling process at predetermined positions in the longitudinal and lateral directions of the rectangular substrate at a predetermined pitch, in the longitudinal direction and the width direction.
- the contours of the small holes 25 are overlapped to form a slit having a certain length, but at a plurality of positions such as a square corner portion, the contours between the adjacent two small holes 25 do not overlap and the shorter-sized connecting ribs are retained.
- the connecting ribs prevent the portion of the substrate surrounded by the slit from being detached from the entire square substrate.
- the first metal shield layer 22 is formed by a process such as electroless copper plating or plating.
- the insulating material 23 such as a resin for constituting the insulating layer in the future is completely filled in the plurality of holes 24.
- a portion covering the insulating material 23 and the first metal shield layer 22 is formed with a prescribed width by a process of chemical precipitation or electroplating.
- the extension portion 21 of the entire end surface is formed in a square shape.
- a square cavity 24 is machined along a substantially central position of the filled insulating material in a predetermined size by means of stamping, drilling, or milling (ie, a CNC process).
- the length and width dimensions of the cavity 24 are slightly smaller than the length and width dimensions of the inner edge of the extension portion 21 formed in the above-described steps, so that a part of the insulating layer 23 can be seen in a plan view or a bottom view.
- the substrate can be directly cut to form an independent one. Protection frame 2.
- the capacitor assembly, the conductive member 4, and the like may be assembled first, and then the substrates on which the number of the circuit board substrates 1 and the bottom plate 3, which are respectively the same as the number of the protective frames 2, are respectively mounted on the upper and lower sides of the protective frame 2, and then Cut to form a separate miniature microphone.
- the method can be further improved, that is, as shown in a partially enlarged view of FIG. 13, for example, the portion of the first metal shield layer 22 exposed on the inner wall of the cavity 24 is etched, thereby being mounted on the protective frame.
- the components in 2 are not in contact with the first metal shield layer 22 at all.
- the protective frame 2 also has a square cylindrical structure with open ends, the central portion of which is a square cavity 24, and the outer side of the protective frame 2 is made of, for example, a resin material.
- the base portion 20 is constructed. Projecting portions 27 projecting toward the cavity side are integrally provided at the central portions of the four inner surfaces of the base portion 20, and the projecting portions 27 extend in the entire height direction of the protective frame 2. Further, a portion other than the protruding portion 27 on the inner surface of the protective frame 2 is provided with a first metal shield layer 22. The protrusion 27 also protrudes from the surface of the first metal shield layer 22.
- the first metal shield layer 22 is formed by a process such as electroless copper or electroplating, respectively. In this step, the first metal shield layer 2 is also formed on the surface of the protruding portion 27.
- the first metal shield layer on the outer surface of the projection 27 is removed by milling or other process.
- the protective frame 2 according to the present embodiment also has a square cylindrical structure with open ends, the central portion of which is a square cavity 24, and the outer side of the protective frame 2 is made of, for example, a resin material.
- the base portion 20 is constructed.
- the protective frame 2 according to the second embodiment differs from the structure in which the protruding portion 27 is provided at the central portion of the inner surface.
- the protective frame 2 according to the present embodiment is integrally provided with a facing cavity at the four corners of the cavity.
- the arcuate projection 28 is formed. Further, a portion other than the protruding portion 28 on the inner surface of the protective frame 2 is provided with a first metal shield layer 22. The projections 28 also protrude from the surface of the first metal shield layer 22.
- a ground portion penetrating both ends of the protective frame 2 may be provided along the height direction of the protective frame 2. 29.
- a square substrate having a predetermined thickness and a predetermined area, for example, a resin insulating material as a substrate is prepared
- a plurality of cavities 24 with projections 28 are machined in a longitudinal direction and a lateral direction of a large-area square substrate at a predetermined interval, and may be stamped, drilled or milled ( That is, the CNC process) or the like processes the cavity 24.
- the first metal shield layer 22 is formed by a process such as electroless copper or electroplating, respectively. In this step, a first metal shield layer is also formed on the surface of the protruding portion 28.
- the first metal shield layer on the outer surface of the projection 28 is removed by milling or other process.
- circuit board substrate the circuit board substrate, the circuit board frame, and the bottom cover are bonded together by a conductive adhesive.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020107017444A KR101153662B1 (ko) | 2008-07-18 | 2009-07-17 | 마이크로폰과 그 마이크로폰의 보호 프레임 및 그 제조방법 |
US12/918,360 US8553921B2 (en) | 2008-07-18 | 2009-07-17 | Miniature microphone, protection frame thereof and method for manufacturing the same |
US13/653,598 US9271435B2 (en) | 2008-07-18 | 2012-10-17 | Miniature microphone, protection frame thereof and method for manufacturing the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200259603U CN201234345Y (zh) | 2008-07-18 | 2008-07-18 | 具有屏蔽结构的微型麦克风 |
CN200820025960.3 | 2008-07-18 | ||
CN200810139099.8 | 2008-08-27 | ||
CN2008101390998A CN101360352B (zh) | 2008-08-27 | 2008-08-27 | 具有屏蔽结构的微型麦克风及其线路板框架的制造方法 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/918,360 A-371-Of-International US8553921B2 (en) | 2008-07-18 | 2009-07-17 | Miniature microphone, protection frame thereof and method for manufacturing the same |
US13/653,598 Continuation US9271435B2 (en) | 2008-07-18 | 2012-10-17 | Miniature microphone, protection frame thereof and method for manufacturing the same |
Publications (1)
Publication Number | Publication Date |
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WO2010006558A1 true WO2010006558A1 (zh) | 2010-01-21 |
Family
ID=41550026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2009/072817 WO2010006558A1 (zh) | 2008-07-18 | 2009-07-17 | 微型麦克风、微型麦克风的保护框架及其制造方法 |
Country Status (3)
Country | Link |
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US (2) | US8553921B2 (zh) |
KR (1) | KR101153662B1 (zh) |
WO (1) | WO2010006558A1 (zh) |
Families Citing this family (11)
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JP5517157B2 (ja) * | 2010-03-25 | 2014-06-11 | 株式会社オーディオテクニカ | マイクロホン |
KR101293056B1 (ko) * | 2011-12-05 | 2013-08-05 | 주식회사 비에스이 | 이어셋 기능을 갖는 마이크로폰 조립체 및 그 제조방법 |
JP5349623B2 (ja) * | 2012-01-06 | 2013-11-20 | 株式会社東芝 | 電子機器 |
KR101335378B1 (ko) * | 2012-04-12 | 2013-12-03 | 앰코 테크놀로지 코리아 주식회사 | 반도체 패키지 및 그 제작 방법 |
JP5951454B2 (ja) | 2012-11-20 | 2016-07-13 | 株式会社東芝 | マイクロフォンパッケージ |
US8965027B2 (en) * | 2013-02-15 | 2015-02-24 | Invensense, Inc. | Packaged microphone with frame having die mounting concavity |
US9439017B2 (en) * | 2014-02-10 | 2016-09-06 | Infineon Technologies Ag | Method for manufacturing a plurality of microphone structures, microphone and mobile device |
KR101554364B1 (ko) * | 2014-12-30 | 2015-09-21 | (주)이미지스테크놀로지 | 리드프레임을 이용한 멤스 마이크로폰 패키지 |
US10291973B2 (en) * | 2015-05-14 | 2019-05-14 | Knowles Electronics, Llc | Sensor device with ingress protection |
CN113613383A (zh) * | 2021-07-28 | 2021-11-05 | 深圳市景旺电子股份有限公司 | 一种屏蔽基板、电路板及屏蔽基板和电路板的制作方法 |
CN115091122A (zh) * | 2022-05-31 | 2022-09-23 | 东莞涌韵音膜有限公司 | L形塑胶支撑音膜的生产工艺 |
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KR20080011066A (ko) * | 2006-07-27 | 2008-01-31 | 스타 마이크로닉스 컴퍼니 리미티드 | 마이크로폰의 케이싱 및 콘덴서 마이크로폰 |
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2009
- 2009-07-17 WO PCT/CN2009/072817 patent/WO2010006558A1/zh active Application Filing
- 2009-07-17 KR KR1020107017444A patent/KR101153662B1/ko active IP Right Grant
- 2009-07-17 US US12/918,360 patent/US8553921B2/en active Active
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2012
- 2012-10-17 US US13/653,598 patent/US9271435B2/en active Active
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CN1909746A (zh) * | 2005-08-01 | 2007-02-07 | 星精密株式会社 | 电容式传声器 |
CN201123128Y (zh) * | 2007-12-07 | 2008-09-24 | 潍坊共达电讯有限公司 | 片式零高度内涂层驻极体传声器 |
CN201234345Y (zh) * | 2008-07-18 | 2009-05-06 | 歌尔声学股份有限公司 | 具有屏蔽结构的微型麦克风 |
CN101360352A (zh) * | 2008-08-27 | 2009-02-04 | 歌尔声学股份有限公司 | 具有屏蔽结构的微型麦克风及其线路板框架的制造方法 |
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KR101153662B1 (ko) | 2012-06-18 |
US20130104379A1 (en) | 2013-05-02 |
KR20100113105A (ko) | 2010-10-20 |
US8553921B2 (en) | 2013-10-08 |
US9271435B2 (en) | 2016-02-23 |
US20110026752A1 (en) | 2011-02-03 |
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