Patent ID: 6559879
Filing Date: 2003-05-06
Classification: B41J,H01L

Abstract:
An LED array head, comprising:a circuit board a base material of which forms a glass epoxy board having a conductive pattern formed thereon; and a plurality of LED array chips, including a compound semiconductor having gallium and arsenide therein, wherein each of said LED array chips has a plurality of light-emitting elements aligned and exposed on an upper surface thereof and has a common electrode provided on a lower surface thereof, said plurality of LED array chips are aligned on said circuit board in a direction in which said light-emitting elements are aligned with equal intervals, and the entire lower surfaces of said plurality of LED array chips are electrically connected through the common electrodes provided thereon to said conductive pattern of the circuit board by a conductive epoxy resin-type adhesive that becomes flexible after curing, the conductive epoxy resin-type adhesive additionally physically attaching the LED array chips to the circuit board.