Piezoelektrische Quarzoszillatoren mit beliebigem Temperaturkoeffizienten, insbesondere dem Wert Null

Bechmann, R.

doi:10.1007/bf01503862

Cited by 12 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…80,81,180,214,297,301,302,304,[306][307][308][309][310][311][312][313][314][315]319,320,333,335,[357][358][359][360][361] The discovery of the temperature compensated quartz AT and BT cuts, and their applications for frequency control and timing assured the success of this technological art. 189,[208][209][210][212][213][214][215]222,362,363 Both TE and LE types were used in the classical experiments of Atanasoff and Hart, 307 but the wider use of LE is more recent. [364][365][366][367][368][369][370][371][372]…”

Section: Piezoelectric Crystal Plate Vibrationsmentioning

confidence: 99%

“…[169–171], and Refs. [79, 115, 172–230] provide ample information on the piezoelectric effect in general, early investigations, and early as well as some more modern data and applications.…”

Section: History and Development Of The Subjectmentioning

confidence: 99%

“…Most of the early work dealt with quartz plates driven by TE 80,81,180,214,297,301,302,304,306–315,319,320,333,335,357–361 . The discovery of the temperature compensated quartz AT and BT cuts, and their applications for frequency control and timing assured the success of this technological art 189,208–210,212–215,222,362,363 . Both TE and LE types were used in the classical experiments of Atanasoff and Hart , 307 but the wider use of LE is more recent 364–377 …”

Section: History and Development Of The Subjectmentioning

confidence: 99%

See 2 more Smart Citations

Acoustic properties of piezoelectric cubic crystals

Ballato

2023

Int J Ceramic Engine & Sci

View full text Add to dashboard Cite

This paper is offered as a complementary adjunct to the many treatments of the electronic and photonic properties of cubic III–V and II–VI compounds appearing in the literature. These crystals typically exhibit piezoelectricity, due to the molecular dissymmetry, thereby allowing the inclusion of classical mechanical/acoustic features along with the quantum. We discuss the history of this modality and then illustrate its use by applying it to an electro‐elastic problem that has the estimable virtues of having an exact solution, along with wide practical applicability: determination of the piezocoupling values governing the excitation of thickness vibrations in thin cubic films or plates of arbitrary crystallographic orientation by electric fields directed either along, or lateral to, the thickness. Explicit results are given for orientations along the great‐circle paths connecting the principal directions [100], [110], and [111]. The formalism is then applied to GaAs as an example; it is further demonstrated that various results, such as the orientational variations of piezocoupling factors, are generally applicable to other members of the III–V and II–VI families by scaling. Ancillary aspects, such as errors due to misorientations, nonlinearities, and equivalent circuit representations, are described and discussed. This work is dedicated to Gerald W. Farnell (1925–2015), Prof. Emeritus, McGill University, Montréal, Canada.

show abstract

Section: Piezoelectric Crystal Plate Vibrationsmentioning

confidence: 99%

Section: History and Development Of The Subjectmentioning

confidence: 99%

Section: History and Development Of The Subjectmentioning

confidence: 99%

See 1 more Smart Citation

Acoustic properties of piezoelectric cubic crystals

Ballato

2023

Int J Ceramic Engine & Sci

View full text Add to dashboard Cite

show abstract

“…In this report, Koga's 1932 paper [ Koga , ] was offered as a starting point [cf. Bechmann , ]. Successive work at Bell Labs (U.S.) …”

Section: Benchmarksmentioning

confidence: 99%

Invention of temperature-insensitive quartz oscillation plate enabling highly stable communications and clocks: Review of Issac Koga's works

Iga

2016

Radio Sci.

View full text Add to dashboard Cite

This is a review article on a stable quartz oscillator. In April 1933, Issac Koga of Tokyo Institute of Technology reported R1 cut quartz crystal plates having a zero temperature coefficient of frequency. This invention was used at first for radio transmitters and later on for clocks. Today, this type of temperature‐insensitive quartz crystal oscillator has proven indispensable to all radio communication systems and much of information electronics.

show abstract

“…The TCFs of virtually all solid materials are negative, ranging approximately from -20 to -120 x 10 -6 /K. In order to offset this behavior of the thin-film piezoelectric, we choose one of the very few cases of a positive TCF to effect the compensation, viz., the pure shear mode of rotated-Y-cut quartz plates, for angles between the AT-and BT-cuts; see Fortunately, the technology of this resonator type has advanced markedly [9] since its discovery [10], so that accurately oriented quartz substrates are readily available at realistic prices.…”

Section: Composite and Thin-film Resonatorsmentioning

confidence: 99%

Thin-film composite resonators on crystalline substrates

Ballato¹

IEEE Ultrasonics Symposium, 2005.

View full text Add to dashboard Cite

Telecommunications systems depend on high stability frequency sources. For mobile uses such as cell phones, size and cost are severe additional constraints. We describe a class of composite piezoresonators that are comprised of piezoelectric thin films deposited on crystalline plate substrates [1] oriented to obtain very low temperature coefficients of frequency (TCFs) for the composite structure. Specifically described are highfrequency bulk acoustic wave resonators (HBARs) comprised of piezoelectric thin films on AT-and BT-cut quartz substrates. An example design for a 2.1 GHz composite resonator is provided. I.

show abstract

Piezoelektrische Quarzoszillatoren mit beliebigem Temperaturkoeffizienten, insbesondere dem Wert Null

Cited by 12 publications

References 0 publications

Acoustic properties of piezoelectric cubic crystals

Acoustic properties of piezoelectric cubic crystals

Invention of temperature-insensitive quartz oscillation plate enabling highly stable communications and clocks: Review of Issac Koga's works

Thin-film composite resonators on crystalline substrates

Contact Info

Product

Resources

About