Patent ID: 11929199
Assignee: 3D GLASS SOLUTIONS, INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC H  C | IPC H

Claim 0:
1. A method to fabricate an inductive device created in or on photo-definable glass comprising the steps of:
preparing a photosensitive glass substrate comprising at least silica, lithium oxide, aluminum oxide, and cerium oxide;
masking a design layout comprising one or more structures to form one or more electrical conduction paths on the photosensitive glass substrate, wherein the one or more structures comprise one or more curved portions;
exposing at least one portion of the photosensitive glass substrate to an activating energy source;
exposing the photosensitive glass substrate to a heating phase of at least ten minutes above its glass transition temperature;
cooling the photosensitive glass substrate to transform at least part of the exposed photosensitive glass substrate to a ceramic phase to form a glass-ceramic material;
etching the glass-ceramic material with an etchant solution to form the one or more structures in the device;
coating the one or more structures with one or more metals;
coating all or part of the one or more metal-filled structures with a dielectric media;
removing all or part of the dielectric media to provide electrical contacts; and
wherein the metal is configured to be connected to a circuitry through a surface or buried contact; and
wherein the inductive device has a magnetic permeability greater than or equal to copper for frequencies greater than 100 MHz.