Pressure on boards to improve corporate performance and management oversight has led to a series of inquiries and reports advocating governance reform. These reports largely reflect an agency perspective of governance and seek to ensure greater board independence from and control of management. While board independence is important to good governance, we contend that frameworks, models and advi...

Circuit boards have become more intricate and material performance and reliability in the multilayer board manufacturing process is more critical than ever before. Prepregs must readily meet the new demands of today’s electronic product designs. The application of prepreg rheology in the lamination cycle can help characterize and design prepregs to allow enhanced performance under the increased...

Purpose – The purpose of this paper is to assess the use of electronic information resources and facilities by humanities scholars at the University of the Punjab, Lahore, Pakistan. Design/methodology/approach – A questionnaire survey of faculty from arts and humanities departments at the University of the Punjab was conducted. In total, 62 faculty and research staff participated. Findings – Th...

INTRODUCTION The Fairchild Power33 uses a flat leaded package to achieve SO-8 type performance in a form factor that is 70% smaller. This packaging technology has been increasingly used for power related products due to its low package height, and excellent thermal performance for size. This is largely due to the large thermal pad in the center of the package which solder directly to the printe...

This paper tries to construct a performance evaluation procedure for printed circuit board (PCB) industry combining productivity and financial ratios. A case study is conducted using 22 PCB companies in Taiwan as example. A total of 51 indicators are initially considered and fourteen are selected. They represent five indicators for production efficiency, four for marketing efficiency, and five ...

“Kriging” is the name of a parametric regression method used by hydrologists and mining engineers, among others. Features of the kriging approach are that it also provides an error estimate and that it can conveniently be employed also to estimate the integral of the regression function. In the present work, the kriging method is described and some of its statistical characteristics are explore...

This paper presents a technique for classification of five types of defect on bare printed circuit board (PCB). Due to decisions made by human inspectors often involve subjective judgment, in addition to being intensive and therefore costly, an automated approach for printed circuit board inspection is preferred to eliminate subjective aspects and provides fast, quantitative, and dimensional as...

The DM-CM-DM coupling between tracks of a PCB and the CM circuit formed with a nearby cabinet panel is discussed based on measurements. A novel track shielding technique and its consequences for signal transport are presented; intentional partial shielding is discussed.

In the manufacture of printed circuit boards, the copper dissolved during etching can be used to replace the copper needed for plating using a liquid ion-exchange agent. Extraction and stripping studies demonstrated the feasibility. The quality of the etchant was not affected by the presence of the ion-exchange agent. Good-quality deposits were plated from the stripping solution with a current ...