Patent ID: 8455280
Filing Date: 2013-06-04
Classification: H01L

Abstract:
1. A method for manufacturing LEDs (light emitting diodes) comprising following steps: providing a substrate and an epitaxial layer formed on a side of the substrate; etching the epitaxial layer along a transverse direction of the epitaxial layer to divide the epitaxial layer into a plurality of separated LED chips, and a groove defined between each two adjacent LED chips; providing a plurality of insulating poles and inserting the insulating poles in the grooves; coating a blocking layer on a top surface of each LED chip away from the substrate; printing a solder paste layer on a top surface of each blocking layer away from the epitaxial layer; reflow soldering the LED chips to make the solder paste layers mounted on the LED chips become solder balls; releasing the substrate from the LED chips; etching the insulating poles until the insulating poles are totally removed and the LED chips are separated from each other; and providing a plurality of metallic plates and respectively soldering the metallic plates on the solder balls of the LED chips.