| 摘要 |
<p>A base plate (1) for electrical circuits consists of an insulating layered body provided with perforating holes (2). In order that the electrical circuits can be produced more simply and quickly, the perforating holes (2) are of truncated, conical shape, the larger diameter of the truncated cone being larger, and the smaller diameter of the truncated cone being smaller than the diameter of the connecting parts of the electrical components to be connected (Fig. 2). <IMAGE></p> |
