This paper discusses the use of an artificial neural network in an automated IC package wirebond inspection defect classification system. A neural network was applied to the inspection of wirebonds in high pin count (>300 pin) IC packages. This study required sample acquisition, image capture, image segmentation, data compression, feature extraction, and training a neural network. Simple image ...

Aimed at the practical requirement of tubular joint welds inspection of offshore platform structures, the ultrasonic phased array inspection algorithm for offshore platform structures is proposed in this paper, and the ultrasonic phased array inspection system for offshore platform structures is developed. The experiment of tubular joint model is performed with the ultrasonic phased array inspe...

The manufacturing of critical applications often requires a low or zero defect level. To ensure quality is not compromised when high product reliability is required, quality-engineering departments frequently employ 100% inspection. Given the fallibility of human inspectors though, re-inspection procedures, at times, may have to be implemented. This paper analyzes various multi-inspector scenar...

Girth weld cracking is one of the main failure modes in oil and gas pipelines; girth weld cracking inspection has great economic and social significance for the intrinsic safety of pipelines. This paper introduces the typical girth weld defects of oil and gas pipelines and the common nondestructive testing methods, and systematically generalizes the progress in the studies on technical principl...

Although there exists a multitude of diierent inspection processes, the basic process has remained unchanged since it was rst deened by Fagan in 1976. This process has as its central component an inspection meeting which all participants attend. But is this meeting cost eeective? Recent empirical work has indicated this is not the case. An inspection model and prototype tool that dispense total...

Field inspection is one of the core operations of municipalities. There are over ten types of field inspection in a typical municipality, including inspection of building, road digging, food sales, food processing services, ad signs, malls, city development projects, cattle slaughterhouses, lodging services, and the inspection team itself. Inspection activities are carried out either periodical...

Inspection is an effective but also expensive quality assurance activity to find defects early during software development. The defect detection process, team size, and staff hours invested can have a considerable impact on the defect detection effectiveness and cost-benefit of an inspection. In this paper, we use empirical data and a probabilistic model to estimate this impact for nominal (non...

Inspecting work-pieces dimensionally to ensure conformity to design criteria is an integral part of manufacturing. An inspection plan defines measurement and inspection requirements. Problems can arise, however, when the design intent is translated into a set of inspection instructions. Computer Aided Inspection Planning (CAIP) has been the research topic for the last many years. The integratio...

Software inspection is a widely acknowledged effective quality improvement method in software development by detecting defects involved in software artifacts and removing them. In research on software inspection, constructing computer supported inspection systems is a major topic in the field. A lot of systems have been reported. However few inspection support systems for model diagrams, especi...