DE2153784C3 - Verfahren zum Herstellen eines Folienelektrets - Google Patents
Verfahren zum Herstellen eines FolienelektretsInfo
- Publication number
- DE2153784C3 DE2153784C3 DE2153784A DE2153784A DE2153784C3 DE 2153784 C3 DE2153784 C3 DE 2153784C3 DE 2153784 A DE2153784 A DE 2153784A DE 2153784 A DE2153784 A DE 2153784A DE 2153784 C3 DE2153784 C3 DE 2153784C3
- Authority
- DE
- Germany
- Prior art keywords
- film
- charge
- dielectric
- electret
- electrodes
- 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
Links
- 239000011888 foil Substances 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000010408 film Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 14
- 230000015556 catabolic process Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 6
- 230000001066 destructive effect Effects 0.000 claims description 5
- 230000005684 electric field Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000035945 sensitivity Effects 0.000 claims description 4
- 239000005331 crown glasses (windows) Substances 0.000 claims description 3
- 239000003989 dielectric material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000010287 polarization Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims 2
- 238000003825 pressing Methods 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000004020 conductor Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 238000010894 electron beam technology Methods 0.000 claims 1
- 238000007786 electrostatic charging Methods 0.000 claims 1
- 239000003546 flue gas Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000004807 localization Effects 0.000 claims 1
- 239000011104 metalized film Substances 0.000 claims 1
- 229920005668 polycarbonate resin Polymers 0.000 claims 1
- 239000004431 polycarbonate resin Substances 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 239000002861 polymer material Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 claims 1
- -1 polyethylene terephthalate Polymers 0.000 description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 229920006254 polymer film Polymers 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000028161 membrane depolarization Effects 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 241001076195 Lampsilis ovata Species 0.000 description 1
- 230000000254 damaging effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003949 trap density measurement Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/025—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric
- H01G7/026—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric with ceramic dielectric
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
- H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12431—Foil or filament smaller than 6 mils
- Y10T428/12438—Composite
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8588270A | 1970-11-02 | 1970-11-02 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2153784A1 DE2153784A1 (de) | 1972-05-25 |
| DE2153784B2 DE2153784B2 (de) | 1974-10-24 |
| DE2153784C3 true DE2153784C3 (de) | 1975-07-17 |
Family
ID=22194584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2153784A Expired DE2153784C3 (de) | 1970-11-02 | 1971-10-28 | Verfahren zum Herstellen eines Folienelektrets |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3705312A (enExample) |
| JP (1) | JPS5541014B1 (enExample) |
| AT (1) | AT323297B (enExample) |
| BE (1) | BE774468A (enExample) |
| DE (1) | DE2153784C3 (enExample) |
| FR (1) | FR2113400A5 (enExample) |
| GB (1) | GB1363717A (enExample) |
| IT (1) | IT940095B (enExample) |
| NL (1) | NL162778C (enExample) |
| SE (1) | SE366608B (enExample) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220851B1 (enExample) * | 1969-12-11 | 1977-06-07 | ||
| FR2144933A5 (enExample) * | 1971-07-02 | 1973-02-16 | Anvar | |
| US3809828A (en) * | 1972-01-17 | 1974-05-07 | Gte Laboratories Inc | Electret transducing device |
| US3786495A (en) * | 1972-05-17 | 1974-01-15 | Ncr | Stored charge transducer |
| US3868624A (en) * | 1972-12-29 | 1975-02-25 | Us Navy | Apparatus for mapping acoustic fields |
| GB2072458B (en) * | 1980-03-03 | 1984-01-04 | C Tape Developments Ltd | Improvements in electroacoustic tranducers |
| GB2079056B (en) * | 1980-06-30 | 1985-04-17 | Tokyo Shibaura Electric Co | Electret device |
| US4382196A (en) * | 1981-03-16 | 1983-05-03 | Gte Products Corporation | Tape transducer |
| JPS57188105A (en) * | 1981-05-14 | 1982-11-19 | Toshiba Corp | Electret constituent |
| US4527218A (en) * | 1981-06-08 | 1985-07-02 | At&T Bell Laboratories | Stable positively charged Teflon electrets |
| US4512941A (en) * | 1983-02-14 | 1985-04-23 | At&T Bell Laboratories | Polarizing of piezoelectric material |
| US4808849A (en) * | 1987-02-03 | 1989-02-28 | Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee | Phyllosilicate electrets and a method for their manufacture |
| WO1993001691A1 (en) * | 1991-07-11 | 1993-01-21 | Driver Michael L | Electrolytic loudspeaker assembly |
| US5388163A (en) * | 1991-12-23 | 1995-02-07 | At&T Corp. | Electret transducer array and fabrication technique |
| US5862239A (en) * | 1997-04-03 | 1999-01-19 | Lucent Technologies Inc. | Directional capacitor microphone system |
| US6833687B2 (en) * | 2003-04-18 | 2004-12-21 | Agilent Technologies, Inc. | Electromechanical power converter |
| US7525205B2 (en) * | 2006-07-28 | 2009-04-28 | Sanyo Electric Co., Ltd. | Electric power generator |
| KR101096546B1 (ko) * | 2009-11-10 | 2011-12-22 | 주식회사 비에스이 | 정전형 스피커 |
| TWM395976U (en) * | 2010-06-30 | 2011-01-01 | Tsung-Hung Wu | Electret electroacoustic transducer |
| DE102013217312B4 (de) | 2013-08-30 | 2016-06-30 | Robert Bosch Gmbh | Kapazitives MEMS-Bauelement mit einer druckempfindlichen Membran |
| DE102013221140A1 (de) * | 2013-10-17 | 2015-04-23 | Robert Bosch Gmbh | Elektretstruktur |
| US10958191B2 (en) | 2018-02-15 | 2021-03-23 | The Charles Stark Draper Laboratory, Inc. | Electrostatic motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225560A (en) * | 1975-08-20 | 1977-02-25 | Sharp Corp | Gate signal feeding method of gto thyristor |
-
1970
- 1970-11-02 US US85882A patent/US3705312A/en not_active Expired - Lifetime
-
1971
- 1971-10-19 SE SE13221/71A patent/SE366608B/xx unknown
- 1971-10-22 NL NL7114561.A patent/NL162778C/xx not_active IP Right Cessation
- 1971-10-26 BE BE774468A patent/BE774468A/xx not_active IP Right Cessation
- 1971-10-26 GB GB4960571A patent/GB1363717A/en not_active Expired
- 1971-10-28 DE DE2153784A patent/DE2153784C3/de not_active Expired
- 1971-10-29 IT IT70582/71A patent/IT940095B/it active
- 1971-10-29 AT AT937471A patent/AT323297B/de not_active IP Right Cessation
- 1971-10-29 FR FR7138989A patent/FR2113400A5/fr not_active Expired
- 1971-11-02 JP JP8686571A patent/JPS5541014B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3705312A (en) | 1972-12-05 |
| BE774468A (fr) | 1972-02-14 |
| NL162778C (nl) | 1980-06-16 |
| JPS5541014B1 (enExample) | 1980-10-21 |
| DE2153784B2 (de) | 1974-10-24 |
| NL7114561A (enExample) | 1972-05-04 |
| AT323297B (de) | 1975-07-10 |
| DE2153784A1 (de) | 1972-05-25 |
| SE366608B (enExample) | 1974-04-29 |
| NL162778B (nl) | 1980-01-15 |
| FR2113400A5 (enExample) | 1972-06-23 |
| GB1363717A (en) | 1974-08-14 |
| IT940095B (it) | 1973-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |