Patent ID: 6242319
Filing Date: 2001-06-05
Classification: H01L

Abstract:
A method for fabricating an integrated circuit configuration, which comprises:providing a first substrate having a surface;producing at least one first structure in a region of the surface of the first substrate;producing at least one first alignment structure in the region of the surface of the first substrate, the at least one first alignment structure scatters electron beams differently than its surroundings;applying a second substrate, being more transmissive to the electron beams than the at least one first alignment structure, above the surface of the first substrate;determining a position of the at least one first alignment structure with an aid of the electron beams for assisting in aligning at least one mask with respect to the at least one first structure; andproducing, with the aid of the at least one mask, at least one second structure in a region of an upper surface of the second substrate, the upper surface being remote from the first substrate.