Patent ID: 7357886
Filing Date: 2008-04-15
Classification: B29C,B29L,E21B,H05K,Y10T

Abstract:
1. A method of fabricating a molded form used to enclose and protect an electrical assembly provided on a printed circuit board which method comprises: providing a printed circuit board having an electrical assembly formed thereon and having an upper surface and a lower surface, the upper surface of the printed circuit board having a topography defined by the size, shape and location of individual components of the electrical assembly; producing an electronic image of the upper surface; modifying the electronic image of the upper surface by measuring the heights of the individual components of the electrical assembly and either adding a factor to the measured heights or subtracting a factor from the measured heights; fabricating a mold for injection molding a molded form that is substantially complementarily shaped to the topography of the upper surface of the printed circuit board, said mold being complementarily shaped to the topography of the upper surface of the printed circuit board by an operation that utilizes the modified electronic image of the upper surface of the printed circuit board, said mold including protrusions that are complementarily shaped to individual ones of the components of the electrical assembly; and injection molding a molded form using the mold which molded form is configured to enclose and protect an electrical assembly provided on a printed circuit board, the molded form having recesses formed by the protrusions, which recesses are complementarily shaped to individual ones of the components of the electrical assembly and configured to receive individual ones of the components of the electrical assembly.