Patent ID: 8707734

Claim:
A method of embedding material in a glass substrate, said method comprising the steps of: providing a glass composition; providing a mold substrate having a patterned surface defining a recess therein and formed from a material having a higher reflow temperature than the glass composition; providing a planar sacrificial layer disposed between the mold substrate on one side and a carrier wafer on another side thereof, with the mold substrate and carrier wafer separated by the width of the planar sacrificial layer; increasing a surface wettability of the patterned surface relative to the glass composition; heating the glass composition to a reflow temperature such that at least a portion of the glass composition flows into the recess defined by the patterned surface of the mold substrate; solidifying the glass composition on the patterned surface of the mold substrate to form a glass layer; removing material from the solidified glass layer until a portion of the underlying patterned surface of the mold substrate is exposed with at least a portion of the mold substrate embedded in the solidified glass layer to form the glass substrate having the material embedded therein; and releasing the mold substrate and the solidified glass layer from the planar sacrificial layer after said step of flowing the glass composition into the recess.