...Jie‐xian Huang; Dong‐tao Yang; Cang‐lai Gong Purpose The purpose of this paper is to propose a new inspecting algorithm for defect detection on PCB circuits. Design/methodology/approach PCB circuit images were processed by a radon transformation. A Radon histogram was formed and utilized...

... Inspection Check the depth of grinding regularly with a microscope or 20× eye glass to check when the pad surface is approaching. Ideally, the objective is to try to reach the base copper foil surface or the epoxy layer just below the copper track and pad. With care, and keeping the section flat...

...P.I. Nicholson; P. Wallace Purpose To present an overview of the research and development carried out by an EC Framework 6 part funded consortium, known as MICROSCAN, for the implementation of an in‐line PCB inspection prototype system that is capable of offering comprehensive defect detection...

... discusses possible root causes for their occurrence. Findings The open trace defects that occurred during printed circuit board (PCB) fabrication should have been observed by the board manufacturer. It appears that the PCB manufacturer did not perform automatic optical inspection (AOI) and electrical...

.... In this paper, the links between the more traditional methods of inspection and test, and how they have given birth via the conventional automatic optical inspection, to the more sophisticated and state‐of‐the‐art automatic optical testing are explored. © MCB UP Limited 2003 Printed circuit boards...

... © MCB UP Limited 2003 --> National Physical Laboratory Inspection Assembly Lead-free assemblies present no problems for automatic optical inspection Keywords: National Physical Laboratory, Inspection,Assembly The National Physical Laboratory has just completed...

... © MCB UP Limited 2001 --> FeinFocus Inspection X-rays FeinFocus introduces new X-ray inspection system Keywords FeinFocus, Inspection, X-rays FeinFocus, USA, Inc., has introduced the new FXS-160.40 inspection system(Plate 3). This system is desired to meet...

... © MCB UP Limited 2000 --> MVT Microvias Inspection Measurement MVT introduces microvia inspection system Keywords: MVT, Microvias, Inspection, Measurement MV Technology Ltd. a manufacturer of automated inspection and measurement machines has announced...

... © MCB UP Limited 2000 --> Lloyd Doyle LG Electronics Inspection Keywords Lloyd Doyle, LG Electronics, Inspection Lloyd Doyle have announced a further multi-million dollar order from Korean giant LG Electronics. The order for a further six systems from the Excalibur...

...Jinung An X‐ray laminography, a tomographic technique that can examine individual planes of focus within a 3‐D structure, promises to be an excellent method of inspecting complicated circuit boards. The technique has accuracy appropriate for circuit board inspection, but the application has been...

...J. Fjelstad This article comprises Chapter 6 from the recently published book ‘An Engineer’s Guide to Flexible Circuit Technology by J. Fjelstad © MCB UP Limited 1997 Inspection Testing Flexible Circuit The physical performance of flex circuit raw materials is checked...

...R. Martens; M. Osterman; D. Haislet A pressure contact connector design was evaluated based on contact load and tested under temperature cycling. The damage induced on gold contact surfaces in a pressure contact connector was examined using visual inspection methods. The connector was subjected...

...S.W. Wirth Baker Hughes INTEQ, a mid‐size manufacturing operation, has successfully developed and implemented an innovative, visual, in‐process inspection programme that can be used on any of the firm's highly technical products. This method of logical and systematic inspection creates a reliable...