| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable projections which are in a stable shape to be easily formed always in a manufacturing method, where a wiring board is manufacturing through an intaglio transfer printing. SOLUTION: In a process, where grooves 3 and 4 are cut in a film 2 for the formation of an intaglio 5, and a conductive material 6 is filled into the grooves 3 and 4, the conductive material 6 is dried out in such a manner where a drying operation is carried out under a reduced pressure or by rotating the intaglio 5 under a reduced pressure for centrifugal drying to take advantage of the fact that a solvent component is liable to evaporate easily under reduced pressure, and air bubbles are prevented from penetrating into the grooves, so that the conductive material 6 can be filled efficiently into the grooves 3 and 4 up to their deepest points. Therefore, a wiring pattern 11 and projections 12 can be formed on a board in one piece and at the same time, and moreover the projections 12 can be easily and formed in a stable shape at all times.</p> |
