GB971571A - Improvements in or relating to the manufacture of piezo-electric resonators - Google Patents
Improvements in or relating to the manufacture of piezo-electric resonatorsInfo
- Publication number
- GB971571A GB971571A GB2985062A GB2985062A GB971571A GB 971571 A GB971571 A GB 971571A GB 2985062 A GB2985062 A GB 2985062A GB 2985062 A GB2985062 A GB 2985062A GB 971571 A GB971571 A GB 971571A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resonator
- electrode
- piezo
- aug
- oscillator
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000001704 evaporation Methods 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
Abstract
971,571. Piezo-electric resonators. TELEFUNKEN PATENT-VERWERTUNGSG.m.b.H. Aug. 3, 1962 [Aug. 10, 1961], No. 29850/62. Heading H1E. The resonant frequency of a piezoelectric e.g. quartz, resonator is adjusted by evaporating metal from or on to an electrode, the evaporation being effected by means of radiant energy. The method is applied to an electroded resonator 3 already mounted within an hermetically sealed enclosure 6. Heat is applied either to an electrode or to a piece of foil 5 made of the same metal, e.g. silver, platinum, as the electrode. Energy from an external source, e.g. a glow discharge lamp 7, is concentrated on to the required spot by e.g. an optical system 8, 9. The lamp may be pulsed to give an output of 60-100 watt-secs. per flash. A circuit for automatically performing the adjustment comprises an oscillator 11 controlled by the resonator 3 and a standard-frequency oscillator 12. The outputs of the oscillators are compared by a device 13 which switches off the pulse generator 10 when the frequency difference reaches zero or some other fixed value. An electron beam may be used instead of visible radiation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET20579A DE1166843B (en) | 1961-08-10 | 1961-08-10 | Method for frequency adjustment of a piezoelectric oscillating body and hermetically sealed vessel for use in the practice of this method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB971571A true GB971571A (en) | 1964-09-30 |
Family
ID=7549766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2985062A Expired GB971571A (en) | 1961-08-10 | 1962-08-03 | Improvements in or relating to the manufacture of piezo-electric resonators |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1166843B (en) |
| GB (1) | GB971571A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5138214A (en) * | 1989-12-27 | 1992-08-11 | Matsushita Electric Industrial Co., Ltd. | Piezoelectric transducer and method of adjusting oscillation frequency thereof |
| EP1499018A1 (en) * | 2003-07-17 | 2005-01-19 | Commissariat A L'energie Atomique | Bulk acoustic wave resonator with adjusted resonance frequency and its fabrication method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5587620A (en) * | 1993-12-21 | 1996-12-24 | Hewlett-Packard Company | Tunable thin film acoustic resonators and method for making the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2505370A (en) * | 1947-11-08 | 1950-04-25 | Bell Telephone Labor Inc | Piezoelectric crystal unit |
| DE872966C (en) * | 1951-01-26 | 1953-04-09 | Quarzkeramik G M B H | Frequency adjustment of oscillating crystals |
| US2765765A (en) * | 1952-09-03 | 1956-10-09 | Robert R Bigler | Apparatus for the manufacture of piezoelectric crystals |
| US2816239A (en) * | 1954-10-22 | 1957-12-10 | James Knights Company | Sealed crystal assembly |
-
1961
- 1961-08-10 DE DET20579A patent/DE1166843B/en active Pending
-
1962
- 1962-08-03 GB GB2985062A patent/GB971571A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5138214A (en) * | 1989-12-27 | 1992-08-11 | Matsushita Electric Industrial Co., Ltd. | Piezoelectric transducer and method of adjusting oscillation frequency thereof |
| EP1499018A1 (en) * | 2003-07-17 | 2005-01-19 | Commissariat A L'energie Atomique | Bulk acoustic wave resonator with adjusted resonance frequency and its fabrication method |
| FR2857785A1 (en) * | 2003-07-17 | 2005-01-21 | Commissariat Energie Atomique | ACOUSTIC VOLUME RESONATOR WITH ADJUSTED RESONANCE FREQUENCY AND METHOD OF MAKING SAME |
| US7310029B2 (en) | 2003-07-17 | 2007-12-18 | Commissariat A L'energie Atomique | Bulk acoustic resonator with matched resonance frequency and fabrication process |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1166843B (en) | 1964-04-02 |
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