A kind of automatic grain sorting equipment and automatic grain sorting method

Abstract

The invention discloses fully automatic crystal grain sorting equipment and a fully automatic crystal grain sorting method. The equipment consists of seven main parts including a wafer work table, a sorting work table, a transportation conveying system, a wafer work table propelling device, a sorting work table propelling device, a swinging arm mechanism and a chip sorting material cabin. The traditional layout and mechanical structure in the prior art is improved, an optimized layout structure is provided on a machine body platform, disc sheets can freely go in or out to be taken and placed among the work table, the propelling device and the chip sorting material cabin through the transportation conveying system, the fully automatic crystal grain sorting is realized, meanwhile, a transportation system has two buffer region positions, the exchange time between the disc sheets to be sorted and the disc sheets completing the sorting can be reduced, and further, the crystal grain sorting time and the crystal grain sorting efficiency are accelerated and improved. The equipment and the method have the characteristics that the sheet exchange is efficient, the whole machine is small and exquisite, the structure is compact, the whole machine stability is good, and the chip sorting material cabin has good expansion performance.

Description

technical field [0001] The invention relates to the technical field of grain sorting, in particular to a fully automatic grain sorting device and a fully automatic grain sorting method. Background technique [0002] After light-emitting diodes (Light Emitting Diode, LED) and semiconductor wafers are cut into grains, a device with grain sorting function, such as a grain sorter, will be used to perform grain testing and binning. In the case of LEDs, several key parameters such as the main wavelength (peak length), luminous intensity (MCD), luminous flux (lumens), color temperature (color temperature), operating voltage (Vf), and reverse breakdown voltage (ImA) are usually targeted. For testing and sorting, this step has a significant impact on the die production and packaging costs of LEDs. Semiconductor grains can also be inspected and sorted according to product requirements. [0003] During the sorting process of the LED dies placed in the wafer ring, the die sorter will ...

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Problems solved by technology

[0004] Nowadays, the electronics industry has higher and higher requirements for the consistency of LED optical rotation properties. The sorting machines that can sort 32 bins in the early days can no longer meet the needs of the use. At present, the commercial sorting machines on the market have the ability to support 72 bins or even 150 bins to meet the requirements. The industry has strict requirements on the consistency of LED grain wavelength and brightness

Taking a grain sorting machine as an example, in the process of realizing the above-mentioned sorting, there are the following problems in the prior art: In addition to having an excellent visual inspection and selection and arrangement system, the grain sorting machine has There are many types of bins for sorting, and the number of distribution boxes used in the sorting process and the transmission actions that need to be carried out are also many. Therefore, the capacity of the storage mechanism inside the machine, the design of the feeding and discharging mechanism, and the transmission speed of the transmission mechanism have affected In terms of the overall performance of the machine, there is a problem of low efficiency

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