Chip resistor detection method, system and device

Abstract

The present invention relates to a chip resistor detection method, system and device. The method comprises the steps of moving a substrate comprising a plurality of chip resistors under a standard probe card of a measurement card, and measuring the general resistance values of the chip resistors on the substrate; moving the substrate under a 140 high voltage probe card of a high-voltage device, and applying a preset time of high voltage on the chip resistors on the substrate; moving the substrate applied with the high voltage under a standard probe of the measurement device, and measuring the high-voltage resistance values of the chip resistors on the substrate; determining whether the chip resistors are abnormal resistors according to whether the difference of the high voltage resistance values and the general resistance values is within a preset difference range; cutting through the abnormal resistors according to the determination results. By the above chip resistor detection method, system and device, the chip resistors can be determined whether to be the abnormal resistors according to whether the difference of the high voltage resistance values and the general resistance values is within the preset difference range, and the abnormal resistors are cut through according to the determination results, so that the resistor stability yield can be improved, and the risks brought by the resistors instability can be reduced.

Description

technical field [0001] The invention relates to the field of screen display, in particular to a chip resistance detection method, system and device. Background technique [0002] In the large-scale production of chip resistors, in different processes, due to the influence of many objective factors such as production technology, production environment, production equipment, and employee operations, there will be a certain probability of defective products. However, due to the small size, high precision requirements, and large output of chip resistors, there is no equipment in China that can automatically and comprehensively detect chip resistors to screen out defective products. After these defective products flow into the client of the chip resistor manufacturer, it will have a negative impact on the corporate image of the resistor manufacturer, and at the same time, the quality problems caused by the defective product will bring great economic losses to the chip resistor ma...

AI Technical Summary

Problems solved by technology

However, due to the small size, high precision requirements, and large output of chip resistors, there is no equipment in China that can automatically and comprehensively detect chip resistors to screen out defective products.

After these defective products flow into the client of the chip resistor manufacturer, it will have a negative impact on the corporate image of the resistor manufacturer, and at the same time, the quality problems caused by the defective product will bring great economic losses to the chip resistor manufacturer.

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