JPS637454B2 - - Google Patents
Info
- Publication number
- JPS637454B2 JPS637454B2 JP792281A JP792281A JPS637454B2 JP S637454 B2 JPS637454 B2 JP S637454B2 JP 792281 A JP792281 A JP 792281A JP 792281 A JP792281 A JP 792281A JP S637454 B2 JPS637454 B2 JP S637454B2
- Authority
- JP
- Japan
- Prior art keywords
- electret
- dielectric
- laminate
- present
- charged
- 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
- 239000010410 layer Substances 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- -1 polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer Polymers 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP792281A JPS57122512A (en) | 1981-01-23 | 1981-01-23 | Electret and method of producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP792281A JPS57122512A (en) | 1981-01-23 | 1981-01-23 | Electret and method of producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57122512A JPS57122512A (en) | 1982-07-30 |
| JPS637454B2 true JPS637454B2 (enrdf_load_stackoverflow) | 1988-02-17 |
Family
ID=11679013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP792281A Granted JPS57122512A (en) | 1981-01-23 | 1981-01-23 | Electret and method of producing same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57122512A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS625626A (ja) * | 1985-07-02 | 1987-01-12 | 東レ株式会社 | 制電性エレクトレツトシ−トおよびその製法 |
| AT409695B (de) * | 2001-05-18 | 2002-10-25 | Akg Acoustics Gmbh | Elektrostatisches mikrofon |
| JP3835739B2 (ja) * | 2001-10-09 | 2006-10-18 | シチズン電子株式会社 | エレクトレットコンデンサマイクロフォン |
| JP3940679B2 (ja) * | 2003-01-16 | 2007-07-04 | シチズン電子株式会社 | エレクトレットコンデンサマイクロホン |
| JP5459653B2 (ja) * | 2009-05-15 | 2014-04-02 | 日本放送協会 | 音響校正装置 |
-
1981
- 1981-01-23 JP JP792281A patent/JPS57122512A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57122512A (en) | 1982-07-30 |
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