EXPOSURE EQUIPMENT FOR LEAD FRAME PRINTED CIRCUIT BOARD

摘要

PURPOSE: An exposure equipment is provided to improve an exposure quality by making a surface of a lead frame substrate be leveled and to minimize consumed lead frame substrate by minimizing a gap between exposure regions of an exposed lead frame substrate. CONSTITUTION: A roller part shifts a lead frame substrate into a region which is exposed by an ultraviolet light source. A mask carrier(5) is configured to mount a film where a pattern to be printed on a substrate is printed. The mask carrier is mounted on a frame(3), and a camera part receives an image signal for aligning the substrate and a film. A mark generator(10) exists at a film placed on the substrate or a film placed at a lower part of the substrate. A substrate alignment mark(12) is produced at a lead frame substrate(9) region placed at the mark generator at exposing. A boundary between an exposed substrate region and a substrate region to be exposed is divided by the substrate alignment mark.