KR100512988B1 - 플렉서블 mems 트랜스듀서 제조방법 - Google Patents
플렉서블 mems 트랜스듀서 제조방법 Download PDFInfo
- Publication number
- KR100512988B1 KR100512988B1 KR10-2002-0058316A KR20020058316A KR100512988B1 KR 100512988 B1 KR100512988 B1 KR 100512988B1 KR 20020058316 A KR20020058316 A KR 20020058316A KR 100512988 B1 KR100512988 B1 KR 100512988B1
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- South Korea
- Prior art keywords
- layer
- mems transducer
- electrode layer
- flexible
- flexible mems
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
- B81C1/00015—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems
- B81C1/00134—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems comprising flexible or deformable structures
- B81C1/00142—Bridges
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/08—Shaping or machining of piezoelectric or electrostrictive bodies
- H10N30/081—Shaping or machining of piezoelectric or electrostrictive bodies by coating or depositing using masks, e.g. lift-off
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/304—Beam type
- H10N30/306—Cantilevers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/308—Membrane type
-
- 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
- B81B2201/0257—Microphones or microspeakers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Micromachines (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
Claims (23)
- 플렉서블 기판 상에 희생층을 형성하는 단계;상기 희생층 상에 PECVD공정으로 멤브레인층, 하부전극층, 활성층, 상부전극층을 차례로 적층하는 단계;상기 상부전극층, 상기 활성층, 상기 하부전극층을 차례로 패터닝하는 단계;상기 상부전극층과 하부전극층 및 활성층을 커버하도록 제2보호층을 적층하는 단계;상기 하부전극층과 상기 상부전극층에 접속될 수 있도록 상기 제2보호층을 패터닝한 후, 접속패드층을 적층하고 상기 하부전극층에 접속되는 제1접속패드와 상기 상부전극층의 접속부에 접속되는 제2접속패드가 형성되도록 상기 접속패드층을 패터닝하는 단계; 및상기 희생층이 드러나도록 상기 멤브레인층을 패터닝한 후 희생층을 제거하는 단계; 를 포함하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 1항에 있어서,상기 기판은 플렉서블한 고분자 물질을 소재로 하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 2항에 있어서,상기 고분자 물질은 폴리이미드인 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 1항에 있어서상기 희생층을 적층하기 전에 상기 플렉서블 기판 상에 실리콘 나이트라이드, 실리콘 산화물 중 어느 하나의 소재를 증착하여 제1보호층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 4항에 있어서,상기 제1보호층은 PECVD 공정, 스퍼터링 공정 중 어느 하나의 공정을 이용하여 형성하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 4항에 있어서,상기 제1보호층은 그 두께가 0 ~ 10㎛인 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 1항에 있어서,상기 희생층을 형성하는 단계는 상기 폴리이미드를 코팅하고, 상기 멤브레인층의 형상에 따라 습식 또는 건식 에칭에 의해 패터닝하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 1항에 있어서,상기 희생층은 그 두께가 0~10㎛ 되도록 형성하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 1항에 있어서상기 멤브레인층은 실리콘 나이트라이드를 재질로 하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 1항에 있어서,상기 멤브레인층은 그 두께가 0 ~ 5㎛인 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서.
- 제 1항에 있어서,상기 상부전극층과 상기 하부전극층은 금속, 전도성폴리머 중에서 선택된 어느 하나를 재질로 하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서.
- 제 1항에 있어서,상기 하부전극층은 그 두께가 0.01㎛ ~ 5㎛인 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서.
- 제 1항에 있어서,상기 상부전극층은 그 두께가 0.01㎛ ~ 5㎛인 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서.
- 제 1항에 있어서상기 활성층은 하부전극층 상에 압전폴리머를 적층하여 형성하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 14항에 있어서,상기 압전폴리머는 스핀코팅, 이바포레이션 공정 중에서 어느 하나의 공정으로 적층하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 14항에 있어서,상기 압전폴리머는 PVDF, PVDF-TrEF, TrEF, Polyurea, Polyimid, Nylon 중에서 선택된 어느 하나인 것을 특징으로 하는 플랙서블 멤스 트랜스듀서 제작방법.
- 제 1항에 있어서상기 활성층을 그 두께가 1 ~ 10㎛ 되도록 형성하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 1항에 있어서,상기 활성층은 공진 주파수가 1㎐ ~100㎑인 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서.
- 제 1항에 있어서,상기 활성층은 그 길이가 50㎛ ~ 1000㎛인 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서.
- 제 1항에 있어서,상기 활성층을 패터닝하는 단계는 습식 또는 건식 에칭 방법으로 패터닝하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
- 제 1항에 있어서,상기 제2보호층은 실리콘 나이트라이드, 실리콘 산화물 중 선택된 어느 하나를 소재로 하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서.
- 제 1항에 있어서,상기 제2보호층은 그 두께가 1㎛ ~ 10㎛인 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서.
- 제 1항에 있어서,상기 제2보호층을 패터닝하는 단계는 습식 또는 건식 에칭 방법으로 패터닝하는 것을 특징으로 하는 플렉서블 MEMS 트랜스듀서 제작방법.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0058316A KR100512988B1 (ko) | 2002-09-26 | 2002-09-26 | 플렉서블 mems 트랜스듀서 제조방법 |
| DE60313715T DE60313715T2 (de) | 2002-09-26 | 2003-09-23 | Herstellungsverfahren für flexible MEMS-Wandler |
| EP03255953A EP1403214B1 (en) | 2002-09-26 | 2003-09-23 | Flexible MEMS transducer manufacturing method |
| US10/669,360 US7151057B2 (en) | 2002-09-26 | 2003-09-25 | Flexible MEMS transducer manufacturing method |
| CNB031650139A CN1262470C (zh) | 2002-09-26 | 2003-09-26 | 柔性微机电系统换能器的制造方法 |
| JP2003336289A JP4126004B2 (ja) | 2002-09-26 | 2003-09-26 | フレキシブルmemsトランスデューサの製作方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0058316A KR100512988B1 (ko) | 2002-09-26 | 2002-09-26 | 플렉서블 mems 트랜스듀서 제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040026758A KR20040026758A (ko) | 2004-04-01 |
| KR100512988B1 true KR100512988B1 (ko) | 2005-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2002-0058316A Expired - Fee Related KR100512988B1 (ko) | 2002-09-26 | 2002-09-26 | 플렉서블 mems 트랜스듀서 제조방법 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7151057B2 (ko) |
| EP (1) | EP1403214B1 (ko) |
| JP (1) | JP4126004B2 (ko) |
| KR (1) | KR100512988B1 (ko) |
| CN (1) | CN1262470C (ko) |
| DE (1) | DE60313715T2 (ko) |
Cited By (1)
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2002
- 2002-09-26 KR KR10-2002-0058316A patent/KR100512988B1/ko not_active Expired - Fee Related
-
2003
- 2003-09-23 DE DE60313715T patent/DE60313715T2/de not_active Expired - Lifetime
- 2003-09-23 EP EP03255953A patent/EP1403214B1/en not_active Expired - Lifetime
- 2003-09-25 US US10/669,360 patent/US7151057B2/en not_active Expired - Lifetime
- 2003-09-26 JP JP2003336289A patent/JP4126004B2/ja not_active Expired - Fee Related
- 2003-09-26 CN CNB031650139A patent/CN1262470C/zh not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4714824A (en) * | 1985-04-16 | 1987-12-22 | Mitsubishi Denki Kabushiki Kaisha | Photoelectric transducer with adjustable sensitivity to incident light wavelength |
| JPH0563171A (ja) * | 1991-08-30 | 1993-03-12 | Kyocera Corp | 光電変換素子の製造方法 |
| JPH07254568A (ja) * | 1994-01-28 | 1995-10-03 | Toray Ind Inc | アモルファスシリコン−ゲルマニウム膜およびその製造方法 |
| US5914507A (en) * | 1994-05-11 | 1999-06-22 | Regents Of The University Of Minnesota | PZT microdevice |
| JP2001085075A (ja) * | 1999-09-10 | 2001-03-30 | Hitachi Maxell Ltd | 光電変換素子及びその製造方法 |
| JP2001250963A (ja) * | 2000-03-03 | 2001-09-14 | Tdk Corp | 太陽電池 |
| KR20020016117A (ko) * | 2000-08-24 | 2002-03-04 | 신현준 | Mems 공정을 이용한 마이크로폰 제작방법 |
| JP2002271897A (ja) * | 2001-01-24 | 2002-09-20 | Koninkl Philips Electronics Nv | 超音波変換器のアレイ |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101395264B1 (ko) * | 2012-10-31 | 2014-05-15 | 울산대학교 산학협력단 | 완화형 강유전 고분자를 이용한 초음파 변환기 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4126004B2 (ja) | 2008-07-30 |
| DE60313715T2 (de) | 2008-01-24 |
| US7151057B2 (en) | 2006-12-19 |
| EP1403214B1 (en) | 2007-05-09 |
| US20040147132A1 (en) | 2004-07-29 |
| KR20040026758A (ko) | 2004-04-01 |
| CN1517295A (zh) | 2004-08-04 |
| EP1403214A2 (en) | 2004-03-31 |
| EP1403214A3 (en) | 2005-09-14 |
| JP2004120764A (ja) | 2004-04-15 |
| DE60313715D1 (de) | 2007-06-21 |
| CN1262470C (zh) | 2006-07-05 |
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