LED lighting apparatus and method for manufacturing the same
To provide an LED lighting apparatus and a method for manufacturing the same that can improve the bonding strength between an aluminum substrate and a printed wiring substrate. An LED lighting apparatus and a method for manufacturing the same, the LED lighting apparatus includes an aluminum substrate, a plurality of reflectivity-enhanced layers formed on the aluminum substrate, an LED device bonded on said plurality of reflectivity-enhanced layers, a printed wiring substrate bonded onto a region on the aluminum substrate other than a region where the plurality of reflectivity-enhanced layers are formed, a wire for connecting between the printed wiring substrate and the LED device, a frame member formed so as to surround said LED device, and a phosphor resin deposited over a region inside the frame member.
1. An LED lighting apparatus comprising:
an aluminum substrate;
a device mounting region formed on said aluminum substrate, wherein said device mounting region includes an adhesive layer, a reflective layer, and an enhanced reflectivity layer;
an LED device bonded on said device mounting region;
a roughened surface region formed on said aluminum substrate, wherein said roughened surface region is located other than a region where said device mounting region is formed;
a printed wiring substrate bonded onto said roughened surface region;
a wire for connecting between said printed wiring substrate and said LED device;
a frame member formed so as to surround said LED device; and
a phosphor resin deposited over a region inside said frame member.
2. The LED lighting apparatus according to claim 1 , wherein said enhanced reflectivity layer includes SiO 2 , TiO 2 , or Al 2 O 3 .