what is COB light source

COB light source introduction

COB light source is a high-efficiency integrated surface light source technology in which the LED chip is directly attached to a high-reflectivity mirror metal substrate. This technology eliminates the concept of brackets, no electroplating, no reflow soldering, and no mounting processes, so the process is reduced Nearly one-third, the cost has also been saved by one-third.

The COB light source can be simply understood as a high-power integrated surface light source, and the light emitting area and shape size of the light source can be designed according to the shape and structure of the product.

Characteristics of cob light source

product features: cheap and convenient

The electrical properties are stable, and the circuit design, optical design, and heat dissipation design are scientific and reasonable;

The use of heat sink technology ensures that the LED has an industry-leading thermal lumen maintenance rate (95%).

it is convenient for the secondary optical matching of the product and improves the lighting quality.

High color rendering, uniform luminescence, no spot, healthy and environmentally friendly.

Simple installation, convenient use, reduce the difficulty of lamp design, save lamp processing and subsequent maintenance costs.

COB light source manufacturing process

COB (Chip On Board, COB) process is first to cover the silicon chip placement point with a thermally conductive epoxy resin (generally silver-doped epoxy resin) on the surface of the substrate, and then directly place the silicon chip On the surface of the substrate, heat treatment until the silicon wafer is firmly fixed on the substrate, and then wire bonding is used to directly establish an electrical connection between the silicon wafer and the substrate.