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专利名称：SAW component having an improved
temperature coefficient
发明人：Werner Ruile,Ulrike Roesler,Ulrich
Wolff,Anton Leidl,Gerd Scholl,MarkusHauser,Ulrich Knauer
申请号：US10542970申请日：20031216公开号：US07459991B2公开日：20081202
专利附图：
摘要：An apparatus including a piezoelectric substrate having at least one transducerelectrode structure. The structure having a metallization formed by one or more metalswith a mean specific density that is at least 50% higher than that of aluminum. Thestructure having a compensation layer that is applied fully or partially over the
metallization. The compensation layer is of a material having a temperature dependenceof elastic constants that counteracts the temperature coefficient of frequency of thesubstrate. The compensation layer has a thickness that is less than 15% of an acousticwavelength of a wave capable of propagation in the structure.
申请人：Werner Ruile,Ulrike Roesler,Ulrich Wolff,Anton Leidl,Gerd Scholl,Markus
Hauser,Ulrich Knauer
地址：Munich DE,Hebertshausen DE,Munich DE,Hohenbrunn DE,Munich DE,FeldafingDE,Munich DE
国籍：DE,DE,DE,DE,DE,DE,DE
代理机构：Fish & Richardson P.C.
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