The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1993
Filed:
Dec. 19, 1991
William T Hatfield, Schenectady, NY (US);
William W Rohling, Scotia, NY (US);
Wolfgang Daum, Schenectady, NY (US);
Carl L Chalek, Scotia, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for optimally operating a computer numerical control (CNC) milling machine to form cavities in a ceramic substrate for receiving IC chips and other components of a high density interconnect structure electrically interconnected by a multi-layer interconnect (HDI) structure. Generation of the CNC program instructions is based on locations and dimensions of the components which, through a set of design rules, provide locations and dimensions for an initial set of cavities corresponding to the components on a one-for-one basis. Depending upon the particular arrangement of the components, specific neighboring cavities of the initial set may either overlap or be separated by walls. A representation of the location and dimensions of each of the cavities of the initial set is formed, and the representation is enhanced by a 'combine pockets' step and by a 'remove borders' step to represent locations and dimensions of cavities of an optimized set. CNC program instructions for the milling machine are then generated for forming the cavities of the optimized set.