Patent ID: 11877518
Assignee: RF360 SINGAPORE PTE. LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A method of manufacturing a package, comprising:
forming device structures for electric devices on a first surface of a first wafer and forming first pads connected to the device structures, the first wafer comprising a piezoelectric layer;
applying, over the device structures, an integrated package layer structure that seals to the first surface and forms a cavity between the integrated package layer structure and the first surface of the first wafer to enclose device structures within the cavity, wherein the integrated package layer includes a mechanical support layer;
reducing a thickness of the first wafer from a second surface opposite to the first surface;
forming holes in the second surface to a depth until the bottom parts of the first pads are exposed;
depositing a metallization on the second surface electrically contacting the first pads in the holes; and
forming second pads on the second surface, wherein applying the integrated package layer structure includes forming a barrier layer over at least the mechanical support layer and having an opening for coupling the first pads to another substrate.