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

Claim 10:
11. The method of claim 7, further comprising:
forming trenches in the first surface of the first wafer and a surface of a second wafer;
bonding the first surface of the first wafer to a temporary carrier, wherein reducing the thickness of the first wafer from the second surface exposes the trenches;
forming the second pads on the second surface on or from the metallization;
exposing the first pads of the second wafer;
arranging the first wafer and second wafer in a stack where the second surface of the first wafer faces the first surface of the second wafer and directly connecting the second pads of the first wafer and the first pads of the second wafer; and
reducing the thickness of the second wafer from the second surface to expose the trenches in the second wafer.