Patent ID: 11899242
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A method comprising:
forming an optical integrated circuit including
a through substrate via (TSV) extending through a back side of a silicon on insulator substrate;
an optical feature at a top side of the substrate, and,
an interconnect structure over the top side of the substrate, the interconnect structure providing electrical connection to electrical components of the optical integrated circuit;

removing a portion of the interconnect structure overlying the optical feature;
after removing the portion of the interconnect structure overlying the optical feature, depositing, over the optical feature, an optical path of dielectric material extending through the interconnect structure, the optical path of dielectric material being free of optical interfaces from a top surface of the dielectric material to a bottom surface to the interconnect structure, and
fusion bonding an electronic integrated circuit to a surface of the dielectric material forming the optical path of dielectric material.