| 摘要 |
In accordance with the method of manufacturing printed circuits, a base material is provided with a plurality of holes in correspondence with the required conductors pattern, the base material with the holes is coated by a photopolymer layer, the photopolymer layer is selectively exposed and developed so as to release zones and boreholes for forming conductive paths, solder eyes and connecting contacts between both sides of the plate, then the layer of the current conductive material is applied in the regions of the thus released zones and boreholes so as to form the above-mentioned conductive paths, solder eyes and connecting contacts. |
