Fully new LED (Light Emitting Diode) crystal grain detection technology
A detection technology and die technology, applied in the field of detection, can solve the problems of high machine cost and personnel cost, large demand for personnel and machine, long test time for a single chip, etc., to speed up the photoelectricity measurement speed and reduce Machine cost and labor cost, the effect of realizing mass production operations
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[0007] First, the technical solution of the present invention is further elaborated.
[0008] A brand-new LED grain detection technology. A performance test probe is installed on the machine. First, the ESD unit probe is used to measure the antistatic ability of the chip. The ESD unit is an electrostatic discharge unit, and the antistatic performance is measured After the chip moves, in the process of chip movement, the movement of the chip is controlled by the servo driver, and the chip is placed directly under the SMU unit probe. The SMU unit is the source measurement unit, ensuring that the detection position of the SMU unit probe is consistent with the ESD unit The detection positions of the probes are the same, and the electrical properties of the chip are measured and recorded. When the SMU unit probes the electrical properties of the chip, all the data of the same chip are comprehensively recorded at the same time. The measurement time of the chip is shortened, and the ...
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