Patent ID: 11927814
Assignee: SCIDATEK INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 15:
16. The sensor of claim 1, wherein a method to integrate the semiconductor photodetector array and the optical waveguide structure comprises:
a first semiconductor wafer surface with a photodetector array integrated with CMOS processes and metal pads prepared for further bonding processing;
a second semiconductor wafer with the optical waveguide structure and electrical circuitry integrated with material-specific processes and metal pads prepared to bond to the pads on the wafer with the photodetector array;
wafer-to-wafer bonding process used to attach the first and the second wafer together, mating the metal pads for electrical connection;
additional thinning process if the photodetector array is used in a back-side illumination configuration.