Patent ID: 6165658
Filing Date: 2000-12-26
Classification: G03F,H05K

Abstract:
A process for the fabrication of multilayer articles having electrical connections between conductor patterns on at least two layers of the multilayer article, said process comprising the steps of:a) using an initial set of image data describing a first layer having a conductor pattern thereon, forming said first layer having a pattern of conductive material thereon;b) taking data of an image of the pattern of conductive material on said first layer;c) determining from the image of the pattern of conductive material on said first layer the relative location of sites within the pattern of conductive material on said first layer that are to be connected to sites on a pattern of conductive material on at least a second layer having conductor patterns thereon; and thereafter performing steps selected from the group consisting of:I) modifying the initial set of image data for said first layer to make corrections for each conductive site within the pattern of conductive material and producing a corrected set of image data;II) modifying an initial set of data for at least a second layer having sites within a pattern of conductive material that are to be connected to sites on said first layer, said modifying be based upon a comparison of the initial set of image data for said second layer and image data taken in step b) of said first layer, and producing a corrected set of image data for said second layer;III) modifying an initial set of data for a second layer having sites within a pattern of conductive material that are to be connected to sites on another layer, said modifying be based upon a comparison of the initial set of image data for said second layer and image data taken of a manufactured second layer, and modifying the initial set of image data for said first layer to make corrections for each conductive site within the pattern of conductive material, thereby producing a corrected set of data for at least said first layer and said second layer; andIV) modifying an initial set of data for a number of layers, each layer having sites within a pattern of conductive material that are to be connected to sites on another layer, said modifying being based upon a comparison of initial sets of image data for each of said number of layers and image data taken of a manufactured layer for each of said number of layers, and modifying the initial set of image data for each of said number of layers to make corrections for each conductive site within a pattern of conductive material within each of said number of layers, thereby producing a corrected set of image data for each of the number of layers; andthen manufacturing at least one layer having conductive sites therein using a corrected set of data for manufacturing said at least one layer.