Patent ID: 6294218
Filing Date: 2001-09-25
Classification: C23C

Abstract:
A process for coating a substrate, comprising the steps of creating at least one silicon-containing texture (4) on a portion of a surface of a silicon oxide layer (2) of a substrate having a silicon base structure (3) on which a first layer (5) is to be applied, the texture (4) comprising a material such that the first layer (5) will adhere better to the texture (4) than to a surface area of the substrate located outside of the texture (4), wherein the material of the texture (4) contains at least one chemical element or chemical compound which is not present in the first layer (5) or is present in the first layer (5) only in a smaller concentration than in the material of the texture (4), applying the first layer (5) on the texture (4) and substrate (3), carrying out a temperature treatment to form a silicide on the substrate after applying the first layer (5), mechanically removing areas of the first layer (5) which project laterally beyond the texture (4), and after the temperature treatment applying on the first layer (5) at least one second layer (7, 9), wherein the at least one second layer (7, 9) does not have the chemical element or chemical compound contained in the material of the texture (4) or the at least one second layer (7, 9) has the chemical element or chemical compound only in a concentration smaller than that of the material of the texture (4).