Processes for producing copy protection for an integrated circuit are
provided. To avoid unauthorized copying of an integrated circuit, an
effective and reliable copy protection are provided. The process includes
the steps of providing a substrate that has semiconductor structures on
at least a first side of the substrate, providing a material for coating
the substrate, and coating the substrate with a copy-protect layer. In
one embodiment, the copy-protect layer is produced by applying a silicate
glass by evaporation coating. Thus, an etching process that dissolves the
copy-protect layer also attacks the substrate so that the semiconductor
structures are at least partially destroyed.