Detectability evaluation of attributes anomaly for electronic components using pulsed thermography

Date

2020-09-16

Supervisor/s

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Department

Type

Article

ISSN

1350-4495

Format

Free to read from

Citation

Liu H, Tinsley L, Addepalli S, et al., (2020) Detectability evaluation of attributes anomaly for electronic components using pulsed thermography. Infrared Physics and Technology, Volume 111, December 2020, Article number 103513

Abstract

Counterfeit Electronic Components (CECs) pose a serious threat to all intellectual properties and bring fatal failure to the key industrial systems. This paper initiates the exploration of the prospect of CEC detection using pulsed thermography (PT) by proposing a detectability evaluation method for material and structural anomalies in CECs. Firstly, a numerical Finite Element Modelling (FEM) simulation approach of CEC detection using PT was established to predict the thermal response of electronic components under the heat excitation. Then, by experimental validation, FEM simulates multiple models with attribute deviations in mould compound conductivity, mould compound volumetric heat capacity and die size respectively considering experimental noise. Secondly, based on principal components analysis (PCA), the gradients of the 1st and 2nd principal components are extracted and identified as two promising classification features of distinguishing the deviation models. Thirdly, a supervised machine learning-based method was applied to classify the features to identify the range of detectability. By defining the 90% of classification accuracy as the detectable threshold, the detectability ranges of deviation in three attributes have been quantitively evaluated respectively. The promising results suggest that PT can act as a concise, operable and cost-efficient tool for CECs screening which has the potential to be embedded in the initial large scale screening stage for anti-counterfeit.

Description

Software Description

Software Language

Github

Keywords

Counterfeit electronic components, Attributes anomaly, Pulsed thermography, Detectability evaluation, Machine learning

DOI

Rights

Attribution-NonCommercial-NoDerivatives 4.0 International

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