Patent ID: 7259080

Claim:
A method for structuring a planar substrate composed of a glasslike material, characterized by a combination of the following method steps: provision of a semiconductor planar substrate composed of a semiconductor material, reduction of the thickness of said semiconductor planar substrate inside at least one surface region of said semiconductor planar substrate in order to form a raised surface region in relation to said surface planar region of reduced thickness, structuring said raised surface region of said semiconductor planar substrate by means of local mechanical removal of material in order to place impressions inside said raised surface regions, joining said structured surface of said semiconductor planar substrate with said glasslike planar substrate in such a manner that said glasslike planar substrate at least partially covers said surface planar region of reduced thickness, tempering said joined planar substrates in such a manner that in a first tempering phase, which is conducted under vacuum conditions, said glasslike planar substrate covering said surface region of reduced thickness forms a fluid-tight bond with said surface region of reduced thickness, with said planar substrate covering said impressions in a fluid-tight manner under vacuum conditions, and that in a second tempering phase, at least partial areas of the glasslike material flow into said impressions of said structured surface of said semiconductor planar substrate.