| 摘要 |
PROBLEM TO BE SOLVED: To easily reconstruct a wiring pattern of an inner layer of a printed circuit board, by connecting conductor connected with other portion of the printed circuit board to a part position of an exposed wiring pattern, and forming a new wiring path between the wiring pattern and the other portion of the printed circuit board. SOLUTION: Cut holes 107, 127 are formed in the vicinity of the respective lands 105, 125, penetrating a line shaped first wiring pattern 101. Then the first wiring pattern 101 is cut, and electrical connection between pins 12, 22 of the respective electronic components 11, 21 whose connection is made via the first wiring pattern 101 is cut. After cutting, an insulator 103 is so partly eliminated that pattern chips to which the pins 12, 22 of the respective electronic components 11, 21 of the first wiring pattern 101 are connected are partly exposed, and pattern exposing holes 108, 128 are formed. Then electric connection parts 109, 129 are formed in the respective exposed part positions of the first wiring pattern 101 and electrically connected via a wire 30. |
