| 摘要 |
An original for use in manufacturing printed circuit boards comprising a film base 1, an image pattern 2, and a protective film 3 for protecting the pattern, and a release layer 4 preferably of a silicone resin or a fluorine-containing resin. The release layer 4 when applied to a photosensitive resist surface prevents sticking at the time of exposure of the photosensitive resin or damage of the photosensitive resin surface or the pattern surface of the original. <IMAGE> |
