Piezoelectric ceramic filter packaging structure

The utility model discloses a piezoelectric ceramic filter packaging structure comprising an alumina ceramic block packaged in a housing, the alumina ceramic block comprises a circuit break area and acircuit area formed by a metal conductive layer, and the metal conductive layer is also connected wi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YANG CHAO, DUAN NA, ZHANG YING, LIU JIANXUE, WU LUOSHU, WANG MINGJUN, ZHANG WENSHENG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses a piezoelectric ceramic filter packaging structure comprising an alumina ceramic block packaged in a housing, the alumina ceramic block comprises a circuit break area and acircuit area formed by a metal conductive layer, and the metal conductive layer is also connected with a guide pillar pedestal extending out of the housing; a middle groove is formed in the aluminumoxide ceramic block, the multiple electrode convex grooves are symmetrically distributed in the two sides of the middle groove, guide holes are formed in the electrode convex grooves, and the guide holes are internally covered with metal conductive films communicating with the metal conductive layer; piezoelectric ceramic vibrators are arranged on the two side faces of the two symmetrical electrode convex grooves, and electrodes and vibrator bonding pads are arranged on the two sides of the piezoelectric ceramic vibrators. And the oscillator bonding pad is connected with the metal conductive layer through a bonding pad