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...
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Format: | Patent |
Sprache: | chi ; eng |
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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 |
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