Printed circuit board fabrication
OwnerMichael A. Grundfest, Joseph A. Grundfestinventors
Life of this patent
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Abstract
The reinforcing fibers in a printed circuit board laminate are arranged in an ordered manner to leave fiber-free zones for the formation of holes. The holes may be oblong to enhance the connection to electrical leads of components mounted on the printed circuit board. The holes may be oriented with their long dimensions transverse to the side of an electrical component, and the electrical component may have its leads correspondingly oriented, to improve wiring flexibility and allow more direct wiring paths.
Claims18
A substrate of reinforced material, said substrate including:
- reinforcing members arranged with spaces therebetween at desired locations to permit the formation of holes in said spaces;
- and
- a material surrounding said reinforcing members and filling said spaces, said material being more easily penetratable at said spaces due to the absence of said reinforcing members than at other locations of said substrate to thereby permit the formation of holes in said spaces.
A substrate of reinforced material, said substrate including:
- reinforcing members arranged with spaces therebetween at desired locations to permit the formation of holes in said spaces, wherein said reinforcing members comprise a plurality of first members running in a first direction and a plurality of second members running in a second direction transverse to said first direction, said first members being arranged in a plurality of groups with first gaps between said groups and the width of said first gaps being greater than the spacing between adjacent fibers within a group, with second gas between at least some of said second members, and the intersections of said first and second gaps defining said spaces.
A substrate of reinforced material, said substrate including:
- reinforcing members arranged with spaces therebetween at desired locations to permit the formation of holes in said spaces, wherein said reinforcing members comprise a plurality of first members running in a first direction and a plurality of second members running in a second direction transverse to said first direction, said first members having an oblong cross section.
A laminate of a plurality of layers of reinforced material, said laminate comprising a plurality of first reinforcing members running in a first direction and a plurality of second reinforcing members running in a second direction transverse to said first direction, said first reinforcing members being arranged in a plurality of groups with first gaps between said groups and the width of said first gaps being greater than the spacing between adjacent reinforcing members within a group, with second gaps between at least some of said second reinforcing members, and the intersections of said first and second gaps defining said spaces.
Dependencies are inferred from the claim text.