| 摘要 |
PURPOSE:To make it possible to narrow the width of an optical printing head by reducing an element mounting area, by stacking light emitting diode arrays on a drive element and applying linear wiring to both of them. CONSTITUTION:Power source patterns 11, 11... and signal system patterns 12, 12... are provided to a substrate in a strip form so as to be allowed to approach one side thereof and drive element 2, 2... are provided on the substrate 1 and an insulating film 3 is laminated to the central parts of the drive element 2, 2... and the conductor layer 4 is laminated to said film 3. Monolithic light emitting diode arrays 5, 5... are fixed onto the conductor layer 4. The electrodes 52, 52... of the light emitting diode arrays 5, 5... are the output terminal wire bond pads of the drive elements 2, 2... are directly connected at both sides of the light emitting diode arrays 5, 5... by wiring. |
