SINGLE CRYSTAL ACOUSTIC RESONATOR AND BULK ACOUSTIC WAVE FILTER

    公开(公告)号:US20180145652A1

    公开(公告)日:2018-05-24

    申请号:US15874815

    申请日:2018-01-18

    申请人: Akoustis, Inc.

    发明人: Jeffrey B. SHEALY

    摘要: A method of wafer scale packaging acoustic resonator devices and an apparatus therefor. The method including providing a partially completed semiconductor substrate comprising a plurality of single crystal acoustic resonator devices provided on a silicon and carbide bearing material, each having a first electrode member, a second electrode member, and an overlying passivation material. At least one of the devices to be configured with an external connection, a repassivation material overlying the passivation material, an under metal material overlying the repassivation material. Copper pillar interconnect structures are then configured overlying the electrode members, and solder bump structures are form overlying the copper pillar interconnect structures.