Method for detecting service life of recycled chip

Abstract

The invention discloses a method for detecting the service life of a recycled chip, and the method comprises the following steps: 1, obtaining a chip sample simulation data set which comprises the aging parameters of a chip sample and the service life of the chip sample; 2, screening out key characteristic parameters in the aging parameters by adopting a principal component analysis method to obtain a chip sample simulation training set; 3, establishing a service life prediction model through a gradient lifting decision tree algorithm, and optimizing parameters of the service life prediction model; and 4, cleaning historical data of the recycled chip, obtaining aging parameters of the recycled chip, and inputting aging data of the recycled chip into the service life prediction model to obtain the service life of the recycled chip. According to the invention, dimension reduction fusion is carried out on the aging parameters by adopting the principal component analysis method, the service life prediction model is obtained through training of the gradient boosting decision tree algorithm, the method is used for predicting the service life of the recycled chip, the model fitting speed is high, the training time is short, and the prediction precision is high.

Description

technical field [0001] The invention relates to the technical field of chip recycling, in particular to a method for detecting the service life of recycled chips. Background technique [0002] Electronic waste, commonly known as "electronic waste", refers to electrical appliances or electronic equipment that are discarded and no longer used. Electronic waste needs to be handled carefully. In some developing countries, the phenomenon of electronic waste is very serious, and the environmental pollution caused threatens the health of local residents. Good health, as an electronic product, electronic chips are mostly recycled by crushing and incineration, which will not only cause a great waste of resources, but also pollute the environment. The so-called recycled chips refer to those produced by the original factory but have been used , The chip removed from the PCB board, one is the aging type, that is, the chip has been used, but still has the function, but the performance is...

AI Technical Summary

Problems solved by technology

[0002] Electronic waste, commonly known as "electronic waste", refers to electrical appliances or electronic equipment that are discarded and no longer used. Electronic waste needs to be handled carefully. In some developing countries, the phenomenon of electronic waste is very serious, and the environmental pollution caused threatens the health of local residents. Good health, as an electronic product, electronic chips are mostly recycled by crushing and incineration, which will not only cause a great waste of resources, but also pollute the environment. The so-called recycled chips refer to those produced by the original factory but have been used , The chip removed from the PCB board, one is the aging type, that is, the chip has been used, but still has the function, but the performance is degraded; the other is the function loss type, that is, it can no longer meet the requirements of the component manufacturer. Chips that perform any function according to the specifications. Recycled chips can easily be replaced by criminals with new ones and flow into the market. Once recycled chips are misused in areas such as transportation, critical infrastructure, and military equipment, it may cause catastrophic damage. System failure or major security incidents

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