Patent ID: 6498356
Filing Date: 2002-12-24
Classification: B41J,H01L

Abstract:
A light-emitting element array chip comprising:a plurality of LED light-emitting elements with a light-emitting region on a surface side of the chip; an internal electric circuit to control said light-emitting elements; an inner-layer insulating film to form a contact on the chip surface side of said internal electric circuit and said light-emitting elements and to establish electrical insulation between internal electric circuits, wherein said contact on said light-emitting elements is arranged in the vicinity of said light-emitting region; a wiring to connect the contact of the said light-emitting elements with the contact of said internal electric circuits, said wiring formed on said inner-layer insulating film toward the surface side of the chip; and a light transmission surface insulating film formed on the chip surface to protect the connection portion between said light-emitting elements and said wiring, wherein said surface insulating film is formed at least on the contact of said light-emitting element to which said wiring is connected and said light-emitting region, said surface insulating film having a thickness such that a decrease in a light transmission amount is not more than 10%.