Patent ID: 11966090
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A device, comprising:
a package substrate;
a first layer comprising an electronic die and a bottom die on the package substrate; and
a second layer comprising a photonic die and a top die, wherein the second layer is bonded onto the first layer such that a bottom surface of the photonic die is bonded onto a top surface of the electronic die, wherein the photonic die comprises a silicon waveguide, wherein the top die comprises a first component that operates at a first operation frequency and the bottom die comprises a second component that operates at a second operation frequency, and wherein the first operation frequency is higher than the second operation frequency;
at least one polymer lens in contact with a side surface of the photonic die; and
at least one optical fiber optically coupled to the at least one polymer lens;
a pedestal adjacent to the electronic die in the first layer, wherein the at least one polymer lens is located on the pedestal; and
a polymer waveguide attached to the silicon waveguide in the photonic die in the second layer and configured to guide light in or out of the silicon waveguide in the photonic die, wherein the polymer waveguide is wider than the silicon waveguide along a direction of propagation of the light.