LED Lighting Blog

The initial LED is mainly used to sort the lights, and generally a single device, so the wavelength separation and brightness control does not require a high. LED normally in accordance with the dominant wavelength, luminous intensity, luminous flux, color temperature, operating voltage, reverse breakdown voltage of several key arguments for testing and sorting. LED Lights testing and sorting is a necessary process in the LED production (uv led grow light) process, but also an important part of the LED chip production and packaging costs.LED sorting in two ways: First, the chip-based separation, the second is the separation of packaged LED.

Chip test sorting in two ways: One way is to test the sorting done by the same machine, its advantages are reliable, but is very slow, low capacity; Another method is to test and sorting by the two machine to complete, test equipment records the location of each chip and argument, then passed to a sorting device for quick sorting, the advantages of doing so is fast, but the drawback is that the reliability is lower than the right, error-prone because usually there are two steps between the testing and sorting substrate thinning and chip separation process, in this process, epitaxial wafers may be fragmentation, partial incomplete fragmentation or partial incomplete, making the actual chip decentralized and does not match the information stored in the sorter, resulting in the separation difficult. The chip testing a fundamental solution to the bottleneck problem of sorting is to improve the uniformity of the wafer.LEDs can be packaged in accordance with the wavelength, luminous intensity, light-emitting angle and voltage of the test separator. The increasingly high demand for LED Street Light early sorter is 32Bin, later increased to 64Bin now the 72Bin commercial sorting machine. Even so, these LED technology (uv led grow light) indicators are still unable to meet production and market demand.The large display screen or other high-end applications users require a higher quality of the LED. In particular, is very strict requirements of the wavelength and brightness consistency. LED packaging factory for uv led grow light in the chip procurement stringent requirements, these packaging plants in a large number of package will find packaged LED only a small number of products to meet the requirements of a particular user, most of the rest will become the stock in the warehouse. This situation forced the stringent requirements in the procurement of the LED chip, LED high bay packaging factory is characterized by wavelength, brightness, and table-voltage indicator.