Patent ID: 7364930

Claim:
A method of structuring surfaces of micro-mechanical and/or micro-optical components and/or functional elements consisting of glass-type materials, comprising: providing a first substrate, structuring at least one surface of said first substrate in order to obtain recesses on the surface, providing a second substrate of glass-type material, joining said first substrate to said second substrate, with the structured surface of said first substrate being joined to a surface of said second substrate in an at least partly overlapping relationship and with a gaseous medium being introduced into said recesses, said gaseous medium expands when heated, annealing said first and second substrates so bonded in such a way that due to the expansion of said gaseous medium within said recesses in said first substrate a local displacement of said glass-type material takes place, so that the side of said second substrate will be structured, which faces said first substrate, and separating said second substrate from said first substrate.