Surface-mount saw device
作者： Yasuhide Toyo Communic. Equip. Co. Ltd. Onozawa
DOI:
关键词:
摘要: The present invention provides a surface-mount SAW device configured to prevent sealing resin layer coated all over the top surface of piezoelectric substrate from becoming charged even if forming is made pyroelectric material. composed of: mounting 2; chip 15 provided with 18, an IDT electrode 17 formed on one said substrate, and connection pads 16 connected via conductor bumps 10 traces 5; 21 outer flip-chip mounted extended down define airtight space S between substrate; wherein crystal structure belongs any point groups C 1 , 2 2V 4 4V 3 3V 6 6V in terms Schoenflies symbols; characterized that conductivity increased suppress charging layer.
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