Patent ID: 8664674

Claim:
An LED device comprising; a plurality of LED chips; a dielectric substrate; a plurality of dielectric supporting platforms each formed on a top surface of said dielectric substrate for mounting thereon an LED chip of said plurality of LED chips; and a plurality of metal layers each formed on a top surface of each of said plurality of dielectric supporting platforms, each of the plurality of metal layers being bonded to one of said plurality of LED chips through solder, wherein said dielectric supporting platforms are configured to project from the top surface of said dielectric substrate to form a groove between adjacent dielectric supporting platforms of the plurality of dielectric supporting platforms, and each dielectric supporting platform of the plurality of dielectric supporting platforms is provided at its side surface with a solder-leading portion formed as part of each of the metal layers, said solder-leading portion being made of a material having a higher wettablity to the solder than that of said dielectric supporting platform, wherein said metal layer and said solder-leading portion of the metal layer is made of a different material than that of said solder, wherein said solder leading portion is directly connected to the solder and the dielectric supporting platform between the solder and the dielectric supporting platform.