FR2255711B1 - - Google Patents
Info
- Publication number
- FR2255711B1 FR2255711B1 FR7442558A FR7442558A FR2255711B1 FR 2255711 B1 FR2255711 B1 FR 2255711B1 FR 7442558 A FR7442558 A FR 7442558A FR 7442558 A FR7442558 A FR 7442558A FR 2255711 B1 FR2255711 B1 FR 2255711B1
- Authority
- FR
- France
- Prior art keywords
- axis
- right angles
- contour areas
- thickness
- ones
- 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
- 239000013078 crystal Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
- H03H9/02023—Characteristics of piezoelectric layers, e.g. cutting angles consisting of quartz
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
- G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
- G04F5/063—Constructional details
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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)
- General Physics & Mathematics (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48142422A JPS5093793A (fr) | 1973-12-21 | 1973-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2255711A1 FR2255711A1 (fr) | 1975-07-18 |
FR2255711B1 true FR2255711B1 (fr) | 1978-12-08 |
Family
ID=15314950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7442558A Expired FR2255711B1 (fr) | 1973-12-21 | 1974-12-23 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5093793A (fr) |
CH (1) | CH624823GA3 (fr) |
DE (1) | DE2461054A1 (fr) |
FR (1) | FR2255711B1 (fr) |
GB (1) | GB1499999A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50123288A (fr) * | 1974-03-15 | 1975-09-27 | ||
JPS5337373U (fr) * | 1976-09-03 | 1978-04-01 | ||
DE2656613C2 (de) * | 1976-12-14 | 1978-10-12 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Länglicher piezoelektrischer Resonator |
FR2424636A1 (fr) * | 1978-04-28 | 1979-11-23 | Ebauches Sa | Resonateur piezo-electrique |
FR2426338A1 (fr) * | 1978-05-19 | 1979-12-14 | Seiko Instr & Electronics | Resonateur a quartz rectangulaire en coupe at |
JPS63285016A (ja) * | 1987-05-18 | 1988-11-22 | Matsushima Kogyo Co Ltd | オ−バ−ト−ン用矩形状at振動子 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1401042A (en) * | 1972-05-30 | 1975-07-16 | Suisse Horlogerie | Quartz crystal resonator |
-
1973
- 1973-12-21 JP JP48142422A patent/JPS5093793A/ja active Pending
-
1974
- 1974-12-20 CH CH1704574A patent/CH624823GA3/xx unknown
- 1974-12-21 DE DE19742461054 patent/DE2461054A1/de not_active Ceased
- 1974-12-23 GB GB55652/74A patent/GB1499999A/en not_active Expired
- 1974-12-23 FR FR7442558A patent/FR2255711B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1499999A (en) | 1978-02-01 |
DE2461054A1 (de) | 1975-07-10 |
CH624823B (de) | |
CH624823GA3 (en) | 1981-08-31 |
FR2255711A1 (fr) | 1975-07-18 |
JPS5093793A (fr) | 1975-07-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |