| 摘要 |
In a method of recognizing a connection of a reconstructing pattern in a printed wiring board when a circuit modification process after a printed board wiring is performed by a physical cutting, a jumper, or the like, a physical connection table is prepared which has a forward connecting direction address (KP address) indicating a forward connection order of connecting elements (a land, a via, a manual land, an external land, a line, and a jumper) with a predetermined connecting element (the land) being made a starting point and a backward connecting direction address (NKP address) indicating a backward connection order to the forward connection order, based on a pattern input information table. Also, a large area pattern is regarded as one of a peripheral line, a punching line, an imaginary line, and a cutting line of the above-mentioned lines, whereby the connecting elements are made to include the large area pattern.
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