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US 5,490,325 AGranted
Guarded printed circuit board islands
AssigneeKeithley Instruments, LLC
InventorsJames A. Niemann, George Topala
Life of this patent
Estimating the term…
Abstract
Low dielectric absorption component connection points are created on a printed circuit board by cutting apertures in the board surrounding the points, leaving only narrow stems still connecting the resulting island to the board.
Claims3
A method for providing on a printed circuit board a component connection area of said board having low dielectric absorption, comprising:
- creating at least one component electrical connection point within said connection area;
- and
- creating one or more apertures in said board, said one or more apertures completely surrounding said connection area except for one or more narrow stems between said connection area and said board, said stems having an aggregate width substantially smaller than the perimeter of said connection area.
Dependencies are inferred from the claim text.