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231223s2007 xx ||||| 00| ||eng c |
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|a (DE-627)NLM175476101
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|a (NLM)18051171
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|c DE-627
|e rakwb
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|a eng
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|a Iborra, Enrique
|e verfasserin
|4 aut
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|a Circuital model for the analysis of the piezoelectric response of A1N films using SAW filters
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 03.01.2008
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|a Date Revised 17.09.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a In this paper we describe a method to assess the piezoelectric response of a piezoelectric thin film deposited on a conductive substrate. It is based on analyzing the frequency response of a surface acoustic wave (SAW) filter made on the piezoelectric thin film. For this analysis, we use a circuital model that takes into account the theoretical response of the ideal filter along with all the external and internal parasitic effects that deteriorate the response. Using this model, we can obtain the electromechanical coupling factor of the piezoelectric material (k2m) with good accuracy. If parasitic effects are not considered, k2m can be underestimated by a factor of up to 20. We have tested our model using SAW filters made on A1N thin films sputtered on substrates with different conductivities. A discussion on the relation between the different circuital elements and the physical properties of the filters also is provided
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|a Journal Article
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|a Vergara, Lucia
|e verfasserin
|4 aut
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|a Sangrador, Jesús
|e verfasserin
|4 aut
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|a Clement, Marta
|e verfasserin
|4 aut
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1 |
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|a Sanz-Hervás, Alfredo
|e verfasserin
|4 aut
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|a Olivares, Jimena
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 54(2007), 11 vom: 07. Nov., Seite 2367-75
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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| 773 |
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|g volume:54
|g year:2007
|g number:11
|g day:07
|g month:11
|g pages:2367-75
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