Model for modifying drill data to predict hole locations in a panel structure

Abstract

A method of creating a mathematical model which is employed in the determination of at least one work location in a multi-layered laminated circuit panel. The mathematical model for modifying drill data takes into consideration translational and rotational compensations caused by the encountered stretching or shrinking of the multi-layered panel subsequent to pressing or due to thermally processing, whereby the mathematical model may be utilized to modify drill data in order to accurately predict hole or via locations.

1 . A method of creating a mathematical model for determining at least one work location. in a multi-layered panel, wherein said mathematical model employs an algorithm considering translational and rotational compensations caused by panel rotation, shrinkage, stretching, expansions and distortions during pressing and thermal processing of said panel, said algorithm facilitating the accurate predication of the location of said at least work location subsequent to the processing of said panel.  
   
   
       2 . A method as claimed in  claim 1 , wherein said algorithm modifies drill data for producing drill machine fiducia in the drilling of a hole, via or slot at said at least one work location.  
   
   
       3 . A method as claimed in  claim 2 , wherein said drill data fiducia is produced in said multi-layered panel after lamination thereof by providing measured rotational, translational and scalar offset data to said drill data to modify said at least one work location in said panel.  
   
   
       4 . A method as claimed in  claim 1 , wherein a plurality of said work locations are measured prior to lamination of the layers of said multi-layered panel; laminating said panel layers; measuring said work locations subsequent to lamination and resultant processing of said laminated panel; utilizing said algorithm to calculate rotational and scalar coordinate offsets resulting from said panel processing; modifying a data file of said measured values; and drilling said panel with the modified data file at optimized work locations.  
   
   
       5 - 11 . (canceled)  
   
   
       12 . A computer program device as claimed in claim  11 , wherein said algorithm modifies drill data for producing drill machine fiducia in the drilling of a hole, via or slot at said at least one work location.  
   
   
       13 - 20 . (canceled)