Patent ID: 8207532

Claim:
A system for creation of an opening of controllable format through a layer of insulation material, comprising: means for creating an opening through a layer of etch resist material provided over the surface of a layer of insulating material having been deposited over the surface of a substrate; means for measuring an obtained critical dimension measurement of said opening created through said layer of etch resist material; means, including a feedback mechanism, for assuring that the obtained critical dimension measurement of said opening created through said layer of etch resist material is within design specification, said feedback mechanism communicating with said means for creating an opening through a layer of etch resist material to control said critical dimension measurement of said opening by implementing corrections in said means for creating an opening through a layer of etch resist material; means for creating an opening through said layer of insulation material, whereby a diameter of said opening through said layer of insulation material is dependent on a diameter of said opening created through said layer of etch resist material; and means, including a feedback mechanism, for assuring that said opening created through said layer of insulation material is within design specification.