BE469891A - - Google Patents
Info
- Publication number
- BE469891A BE469891A BE469891DA BE469891A BE 469891 A BE469891 A BE 469891A BE 469891D A BE469891D A BE 469891DA BE 469891 A BE469891 A BE 469891A
- Authority
- BE
- Belgium
Links
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US657885A US2454328A (en) | 1946-03-28 | 1946-03-28 | Piezoelectric crystal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE469891A true BE469891A (en:Method) |
Family
ID=24639055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE469891D BE469891A (en:Method) | 1946-03-28 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2454328A (en:Method) |
| BE (1) | BE469891A (en:Method) |
| FR (1) | FR937869A (en:Method) |
| GB (1) | GB631346A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE806547C (de) * | 1948-03-02 | 1951-06-14 | Machf Reineveld Nv | Trockenapparat, besonders fuer Waesche |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2309467A (en) * | 1941-07-25 | 1943-01-26 | Bell Telephone Labor Inc | Rochelle salt piezoelectric crystal apparatus |
-
0
- BE BE469891D patent/BE469891A/xx unknown
-
1946
- 1946-03-28 US US657885A patent/US2454328A/en not_active Expired - Lifetime
- 1946-12-18 FR FR937869D patent/FR937869A/fr not_active Expired
-
1947
- 1947-03-14 GB GB7156/47A patent/GB631346A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2454328A (en) | 1948-11-23 |
| GB631346A (en) | 1949-11-01 |
| FR937869A (fr) | 1948-08-30 |