GB959293A - Improvements in or relating to piezoelectric devices - Google Patents
Improvements in or relating to piezoelectric devicesInfo
- Publication number
- GB959293A GB959293A GB1706/61A GB170661A GB959293A GB 959293 A GB959293 A GB 959293A GB 1706/61 A GB1706/61 A GB 1706/61A GB 170661 A GB170661 A GB 170661A GB 959293 A GB959293 A GB 959293A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- furnace
- vapour
- zinc oxide
- oxygen
- 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
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 239000011701 zinc Substances 0.000 abstract 2
- 229910052725 zinc Inorganic materials 0.000 abstract 2
- 239000011787 zinc oxide Substances 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 239000012159 carrier gas Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 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
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/34—Amplitude modulation by means of light-sensitive element
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/30—Time-delay networks
- H03H9/38—Time-delay networks with adjustable delay time
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
Abstract
Zinc oxide crystals are grown from a vapour phase by causing zinc vapour and oxygen to combine in a furnace at 1250-1300 DEG C. The furnace comprises concentric inner and outer tubes of aluminium oxide, the smaller tube being open-ended. Zinc powder is placed near the end of the smaller tube and air is blown through until equilibrium is reached at the above temperature, after which a carrier gas mixture of nitrogen and a minor amount of wet hydrogen is passed over the zinc oxide powder. Reduced zinc vapour is carried out of the inner tube into the central region of the furnace where it reacts with the oxygen of the air to produce crystalline zinc oxide growth in the vicinity of the end of the inner concentric chamber. The crystalline mass is withdrawn with the inner tube. Specification 959,294 is referred to.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20572A US3091707A (en) | 1960-04-07 | 1960-04-07 | Piezoelectric devices utilizing zinc oxide |
| US22015A US3093758A (en) | 1960-04-13 | 1960-04-13 | Piezoelectric devices utilizing cadmium sulfide |
| US23441A US3145354A (en) | 1960-04-20 | 1960-04-20 | Circuit element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB959293A true GB959293A (en) | 1964-05-27 |
Family
ID=30449223
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1706/61A Expired GB959293A (en) | 1960-04-07 | 1961-01-16 | Improvements in or relating to piezoelectric devices |
| GB12515/61A Expired GB958690A (en) | 1960-04-07 | 1961-04-07 | Improvements in or relating to piezoelectric devices |
| GB12516/61A Expired GB964589A (en) | 1960-04-07 | 1961-04-07 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12515/61A Expired GB958690A (en) | 1960-04-07 | 1961-04-07 | Improvements in or relating to piezoelectric devices |
| GB12516/61A Expired GB964589A (en) | 1960-04-07 | 1961-04-07 |
Country Status (6)
| Country | Link |
|---|---|
| CH (1) | CH390596A (en) |
| DE (3) | DE1616606B1 (en) |
| DK (1) | DK114563B (en) |
| FR (1) | FR1286476A (en) |
| GB (3) | GB959293A (en) |
| NL (1) | NL263351A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393444A (en) * | 1992-09-08 | 1995-02-28 | Ngk Insulators, Ltd. | Piezoelectric semiconductor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB311055A (en) * | 1928-03-29 | 1929-05-09 | Paul Freedman | Improvements in or relating to piezo-electric substances |
| US2711515A (en) * | 1950-09-29 | 1955-06-21 | Bell Telephone Labor Inc | Delay line |
| US2712638A (en) * | 1951-09-18 | 1955-07-05 | David L Arenberg | Single-crystal ultrasonic solid delay lines using multiple reflections |
| US2814793A (en) * | 1955-04-05 | 1957-11-26 | Sperry Rand Corp | Variable delay line |
| US2818548A (en) * | 1955-10-19 | 1957-12-31 | Rca Corp | Phase modulating device |
-
0
- NL NL263351D patent/NL263351A/xx unknown
-
1961
- 1961-01-16 GB GB1706/61A patent/GB959293A/en not_active Expired
- 1961-03-28 CH CH366561A patent/CH390596A/en unknown
- 1961-04-01 DE DE1961W0029744 patent/DE1616606B1/en active Pending
- 1961-04-01 DE DE1961W0029745 patent/DE1616607B1/en active Pending
- 1961-04-05 DK DK139861AA patent/DK114563B/en unknown
- 1961-04-07 GB GB12515/61A patent/GB958690A/en not_active Expired
- 1961-04-07 GB GB12516/61A patent/GB964589A/en not_active Expired
- 1961-04-11 DE DEW29782A patent/DE1257998B/en active Pending
- 1961-04-19 FR FR859251A patent/FR1286476A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB964589A (en) | 1964-07-22 |
| DK114563B (en) | 1969-07-14 |
| CH390596A (en) | 1965-04-15 |
| DE1257998B (en) | 1968-01-04 |
| DE1616606B1 (en) | 1970-04-30 |
| GB958690A (en) | 1964-05-21 |
| FR1286476A (en) | 1962-03-02 |
| DE1616607B1 (en) | 1970-03-26 |
| NL263351A (en) | 1900-01-01 |
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