| 摘要 |
There is disclosed a method of forming conductive tracks on a substrate using a laser ablation technique in order to produce Printed Circuit Boards (PCBs). The method involves the initial step of coating a substrate such as alumina substrate with a conductive ink to create a conductive ink layer. Subsequent to this, a laser spot is focussed onto the ink in order to ablate a portion of the ink layer from the substrate to define tracks of ink, which are then cured. Also disclosed is a method of forming multiple layers of conductive tracks on a substrate, each layer of conductive tracks being separated by a layer of cured dielectric ink. The method involves and sequentially coating, ablating, and curing alternate dielectric and conductive ink layers on a substrate incorporating cured tracks of ink produced by the method noted above. An apparatus for use in the method is also disclosed. |
