DE2237413A1 - Elektret-vorrichtung - Google Patents
Elektret-vorrichtungInfo
- Publication number
- DE2237413A1 DE2237413A1 DE19722237413 DE2237413A DE2237413A1 DE 2237413 A1 DE2237413 A1 DE 2237413A1 DE 19722237413 DE19722237413 DE 19722237413 DE 2237413 A DE2237413 A DE 2237413A DE 2237413 A1 DE2237413 A1 DE 2237413A1
- Authority
- DE
- Germany
- Prior art keywords
- dielectric
- dielectric layer
- electret device
- electret
- dielectric part
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 5
- -1 for example Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 101150086986 Pigu gene Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Filtering Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5601771A JPS5115599B1 (enrdf_load_stackoverflow) | 1971-07-28 | 1971-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2237413A1 true DE2237413A1 (de) | 1973-02-08 |
Family
ID=13015277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722237413 Pending DE2237413A1 (de) | 1971-07-28 | 1972-07-27 | Elektret-vorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5115599B1 (enrdf_load_stackoverflow) |
| DE (1) | DE2237413A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2147264B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1340158A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7410408L (sv) * | 1974-08-15 | 1976-01-19 | Ericsson Telefon Ab L M | Forfarande for framstellning av en elektretmikrofon med ett noggrant bestemt luftgap. |
| JPS55157223A (en) | 1979-05-25 | 1980-12-06 | Tokyo Shibaura Electric Co | Method of manufacturing electret |
| AT374326B (de) * | 1982-07-22 | 1984-04-10 | Akg Akustische Kino Geraete | Elektrostatischer wandler, insbesondere kondensatormikrophon |
-
1971
- 1971-07-28 JP JP5601771A patent/JPS5115599B1/ja active Pending
-
1972
- 1972-07-26 GB GB3492872A patent/GB1340158A/en not_active Expired
- 1972-07-27 DE DE19722237413 patent/DE2237413A1/de active Pending
- 1972-07-27 FR FR7227119A patent/FR2147264B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2147264A1 (enrdf_load_stackoverflow) | 1973-03-09 |
| FR2147264B1 (enrdf_load_stackoverflow) | 1976-03-12 |
| GB1340158A (en) | 1973-12-12 |
| JPS5115599B1 (enrdf_load_stackoverflow) | 1976-05-18 |
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