BE660299A - - Google Patents
Info
- Publication number
- BE660299A BE660299A BE660299A BE660299A BE660299A BE 660299 A BE660299 A BE 660299A BE 660299 A BE660299 A BE 660299A BE 660299 A BE660299 A BE 660299A BE 660299 A BE660299 A BE 660299A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/006—Transducers other than those covered by groups H04R9/00 - H04R21/00 using solid state devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
- H03F3/16—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with field-effect devices
- H03F3/165—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with field-effect devices with junction-FET's
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Pressure Sensors (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1964S0089744 DE1439341A1 (de) | 1964-02-28 | 1964-02-28 | Mechanisch-elektrischer Wandler in Form eines Feldeffekttransistors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE660299A true BE660299A (fi) | 1965-08-26 |
Family
ID=7515319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE660299A BE660299A (fi) | 1964-02-28 | 1965-02-26 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3377528A (fi) |
| BE (1) | BE660299A (fi) |
| CH (1) | CH450490A (fi) |
| DE (1) | DE1439341A1 (fi) |
| FR (1) | FR1428217A (fi) |
| GB (1) | GB1074822A (fi) |
| NL (1) | NL6501270A (fi) |
| SE (1) | SE314126B (fi) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3609252A (en) * | 1967-01-23 | 1971-09-28 | Texas Instruments Inc | Transducer apparatus and system utilizing insulated gate semiconductor field effect devices |
| US3624315A (en) * | 1967-01-23 | 1971-11-30 | Max E Broce | Transducer apparatus and transducer amplifier system utilizing insulated gate semiconductor field effect devices |
| US3584242A (en) * | 1968-06-16 | 1971-06-08 | Matsushita Electric Ind Co Ltd | Phase-controlled pulse generator |
| US3719075A (en) * | 1970-10-19 | 1973-03-06 | Medical Sciences Int Inc | Viscosity measuring device |
| US8132465B1 (en) | 2007-08-01 | 2012-03-13 | Silicon Microstructures, Inc. | Sensor element placement for package stress compensation |
| CN115278487B (zh) * | 2022-07-28 | 2024-08-27 | 维沃移动通信有限公司 | 麦克风及其制备方法、电子设备 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2632062A (en) * | 1949-06-15 | 1953-03-17 | Bell Telephone Labor Inc | Semiconductor transducer |
| US2929885A (en) * | 1953-05-20 | 1960-03-22 | Rca Corp | Semiconductor transducers |
| US2869055A (en) * | 1957-09-20 | 1959-01-13 | Beckman Instruments Inc | Field effect transistor |
| US3270554A (en) * | 1961-01-04 | 1966-09-06 | Bell Telephone Labor Inc | Diffused layer transducers |
| DE1215399B (de) * | 1963-07-23 | 1966-04-28 | Siemens Ag | Druckempfindliche Halbleiteranordnung |
-
1964
- 1964-02-28 DE DE1964S0089744 patent/DE1439341A1/de active Pending
-
1965
- 1965-02-01 NL NL6501270A patent/NL6501270A/xx unknown
- 1965-02-25 SE SE2469/65A patent/SE314126B/xx unknown
- 1965-02-26 FR FR7184A patent/FR1428217A/fr not_active Expired
- 1965-02-26 GB GB8329/65A patent/GB1074822A/en not_active Expired
- 1965-02-26 BE BE660299A patent/BE660299A/xx unknown
- 1965-02-26 US US435478A patent/US3377528A/en not_active Expired - Lifetime
- 1965-02-26 CH CH272365A patent/CH450490A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3377528A (en) | 1968-04-09 |
| GB1074822A (en) | 1967-07-05 |
| DE1439341A1 (de) | 1969-04-03 |
| NL6501270A (fi) | 1965-08-30 |
| CH450490A (de) | 1968-01-31 |
| FR1428217A (fr) | 1966-02-11 |
| SE314126B (fi) | 1969-09-01 |