Patent ID: 11960051
Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Field: Optics (Instruments)
Classification: CPC G  B | IPC G

Claim 0:
1. A method of fabricating a meta-lens structure, the method comprising:
forming a first dielectric layer in contact with a silicon wafer;
forming a second dielectric layer in contact with the first dielectric layer, a refractive index of the second dielectric layer different from a refractive index of the first dielectric layer;
patterning the second dielectric layer; and
removing at least a portion of the silicon wafer to expose the first dielectric layer,
wherein the silicon wafer is entirely removed;
wherein the method further comprises forming a layer of silicon oxide in contact with the second dielectric layer after the second dielectric layer is patterned and before the silicon wafer is entirely removed; and
wherein the method also comprises bonding a wafer to the silicon oxide layer after the silicon oxide layer is formed, and before the silicon wafer is entirely removed.