Printed circuit board having a plurality of circuit board patterns

摘要

A printed circuit board that has a surface which bears a plurality of circuit board pattern, each pattern being served with at least one individual terminal. The printed circuit board is used for a method of determining the stabilized surface insulation resistance of the substrate of the printed circuit board. The circuit board patterns are spaced-apart so as to lie upon surface band regions extending lengthwise and widthwise of the surface of the printed circuit board, these surface band regions being different from one printed circuit board pattern to another. This arrangement of circuit board patterns results in a substantial surface of the board to be dominated by the patterns suitable for the test procedure.