Patent ID: 8911636

Claim:
A method of fabricating a micro-device having micro-features on glass, the method comprising the steps of: (a) preparing a first glass substrate; (b) fabricating a metallic pattern on the first glass substrate; (c) preparing a second glass substrate and providing one or more apertures on the second glass substrate; (d) heating the first glass substrate and the second glass substrate with a controlled temperature raise; (e) bonding the first glass substrate and the second glass substrate by applying pressure to form a bonded substrate, wherein the metallic pattern is embedded within the bonded substrate; (f) cooling the bonded substrate with a controlled temperature drop and thereafter maintaining the bonded substrate at a temperature suitable for etching; (g) etching the metallic pattern within the bonded substrate, wherein an etchant has access to the metallic pattern via the apertures; and (h) forming a void within the bonded substrate, wherein the void comprises micro-features.