CN201426175Y - Capacitance microphone - Google Patents
Capacitance microphone Download PDFInfo
- Publication number
- CN201426175Y CN201426175Y CN2009201321733U CN200920132173U CN201426175Y CN 201426175 Y CN201426175 Y CN 201426175Y CN 2009201321733 U CN2009201321733 U CN 2009201321733U CN 200920132173 U CN200920132173 U CN 200920132173U CN 201426175 Y CN201426175 Y CN 201426175Y
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- CN
- China
- Prior art keywords
- control circuit
- chip
- circuit chip
- capacitance microphone
- microphone
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a capacitance microphone which comprises a circuit board and a housing connected with the circuit board, wherein the circuit board and the housing form a protection structure; and sound holes are formed on the protection structure. The capacitance microphone further comprises a micro-electro-mechanical chip and a control circuit chip placed in the protection structure, wherein the control circuit chip is arranged on the circuit board; the micro-electro-mechanical chip is arranged on the control circuit chip; and the micro-electro-mechanical chip is electrically connected with the control circuit chip. Due to the adoption of the capacitance microphone with the structure, the space can be saved, so that the microphone is convenient to develop towards micromation.
Description
Technical field
The utility model relates to a kind of microphone, relates in particular to a kind of capacitance microphone.
Background technology
Development along with wireless telecommunications, Global Mobile Phone Users is more and more, the user not only is satisfied with conversation to the requirement of mobile phone, and want high-quality communication effect can be provided, especially at present the development of mobile multimedia technology, the speech quality of mobile phone becomes more important, and the microphone of mobile phone is as the voice pick device of mobile phone, and its design quality directly influences speech quality.
And the microphone of using more and better performances at present is microelectromechanical-systems microphone (Micro-Electro-Mechanical-System Microphone, be called for short MEMS), in the correlation technique, the microelectromechanical-systems microphone comprises wiring board and the shell that links to each other with this wiring board and MEMS chip and control circuit; Wherein, MEMS chip and control circuit are separately positioned on the wiring board.Single this encapsulating structure requires the space big, and product is difficult to do little, is unfavorable for the microminiaturization of product.Therefore be necessary to provide a kind of novel MEMS microphone.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of microminiaturized capacitance microphone that is beneficial to.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is:
A kind of capacitance microphone; comprise wiring board and the shell that links to each other with wiring board; this wiring board and shell constitute the protection structure; offer sound hole on this protection structure; this capacitance microphone also comprises mems chip and the control circuit chip that is placed in the protection structure; the setting of described control circuit chip in the circuit board, mems chip is arranged on the control circuit chip, mems chip is electrically connected with the control circuit chip.
Preferably, mems chip is electrically connected by the binding gold thread with the control circuit chip.
Preferably, described hole is arranged on the shell.
The beneficial effects of the utility model are: because the MEMS chip is placed on the control circuit chip, can conserve space, and be beneficial to the microminiaturization of product.
Description of drawings
The profile of an embodiment of Fig. 1 the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 1, the capacitance microphone 1 that the utility model provides comprises wiring board 11 and the shell 12 that links to each other with wiring board 11; wiring board 11 and shell 12 have constituted the protection structure; offer sound hole 121 on shell 12, certainly, sound hole 121 also can be opened on the wiring board 11.
The mode that mems chip 14 is electrically connected with control circuit chip 13 has multiple, as connecting by the binding gold thread.Also can adopt other modes to connect.
Above-described only is a kind of execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (3)
1, a kind of capacitance microphone; comprise wiring board and the shell that links to each other with wiring board; this wiring board and shell constitute the protection structure; offer sound hole on this protection structure; this capacitance microphone also comprises mems chip and the control circuit chip that is placed in the protection structure; it is characterized in that: the setting of described control circuit chip in the circuit board, mems chip is arranged on the control circuit chip, mems chip is electrically connected with the control circuit chip.
2, capacitance microphone according to claim 1 is characterized in that: mems chip is electrically connected by the binding gold thread with the control circuit chip.
3, capacitance microphone according to claim 1 is characterized in that: described sound hole is arranged on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201321733U CN201426175Y (en) | 2009-05-22 | 2009-05-22 | Capacitance microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201321733U CN201426175Y (en) | 2009-05-22 | 2009-05-22 | Capacitance microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201426175Y true CN201426175Y (en) | 2010-03-17 |
Family
ID=42025632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201321733U Expired - Lifetime CN201426175Y (en) | 2009-05-22 | 2009-05-22 | Capacitance microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201426175Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104093661A (en) * | 2011-11-22 | 2014-10-08 | 罗伯特·博世有限公司 | Chip with micro-electromechanical structure and protection element and manufacturing method thereof |
| CN108249383A (en) * | 2016-12-28 | 2018-07-06 | 深迪半导体(上海)有限公司 | A kind of MEMS sensor, microphone and pressure sensor |
-
2009
- 2009-05-22 CN CN2009201321733U patent/CN201426175Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104093661A (en) * | 2011-11-22 | 2014-10-08 | 罗伯特·博世有限公司 | Chip with micro-electromechanical structure and protection element and manufacturing method thereof |
| CN108249383A (en) * | 2016-12-28 | 2018-07-06 | 深迪半导体(上海)有限公司 | A kind of MEMS sensor, microphone and pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC Acoustic Technologies (Changzhou) Co., Ltd. Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Patentee before: AAC Acoustic Technologies (Changzhou) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100317 |
|
| CX01 | Expiry of patent term |