CH258971A - Dispositif à cristal piézoélectrique. - Google Patents
Dispositif à cristal piézoélectrique.Info
- Publication number
- CH258971A CH258971A CH258971DA CH258971A CH 258971 A CH258971 A CH 258971A CH 258971D A CH258971D A CH 258971DA CH 258971 A CH258971 A CH 258971A
- Authority
- CH
- Switzerland
- Prior art keywords
- crystal device
- piezoelectric crystal
- piezoelectric
- crystal
- Prior art date
Links
- 239000013078 crystal Substances 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Glass Compositions (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US646639A US2460520A (en) | 1946-02-09 | 1946-02-09 | Piezoelectric crystal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH258971A true CH258971A (fr) | 1948-12-31 |
Family
ID=24593852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH258971D CH258971A (fr) | 1946-02-09 | 1946-11-16 | Dispositif à cristal piézoélectrique. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2460520A (fr) |
| CH (1) | CH258971A (fr) |
| ES (1) | ES176776A1 (fr) |
| FR (1) | FR935839A (fr) |
| GB (1) | GB631336A (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2292885A (en) * | 1941-05-09 | 1942-08-11 | Bell Telephone Labor Inc | Rochelle salt piezoelectric crystal apparatus |
| US2292886A (en) * | 1941-05-22 | 1942-08-11 | Bell Telephone Labor Inc | Rochelle salt piezoelectric crystal apparatus |
| BE471729A (fr) * | 1946-04-05 |
-
1946
- 1946-02-09 US US646639A patent/US2460520A/en not_active Expired - Lifetime
- 1946-11-12 FR FR935839D patent/FR935839A/fr not_active Expired
- 1946-11-16 CH CH258971D patent/CH258971A/fr unknown
-
1947
- 1947-01-24 GB GB2285/47A patent/GB631336A/en not_active Expired
- 1947-02-04 ES ES0176776A patent/ES176776A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB631336A (en) | 1949-11-01 |
| ES176776A1 (es) | 1947-03-16 |
| US2460520A (en) | 1949-02-01 |
| FR935839A (fr) | 1948-07-01 |
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