| 摘要 |
1288731 Printed circuits PHILIPS ELECTRONICS & ASSOCIATED INDUSTRIES Ltd 16 Jan 1970 [21 Jan 1969] 2198/70 Heading H1R A flexible electrically insulating foil 1 on which a pattern of conductive tracks 2 is provided to which at least one electric component 13 can be connected, is overlaid with an insulating layer 3 which does not cover parts of the pattern which are to serve as contact places 4, 5. One or more contact places to which an electric component can be connected are situated in at least one aperture 6 of the insulating layer, said aperture having two substantially parallel sides 7, with the contact places adjoining only the said substantially parallel sides. The contact places 4 (see also Fig. 3, not shown) may be joined to a conductive track (2) via a narrowing (30) of said track. The insulating layer may have a different colour to that of the foil, and may also consist of a photoresist. |
