Circuit World: Volume 11 Issue 2


Table of contents

Manufacture of a Multilayer Polyimide PCB Containing Integral Copper/Invar Composite Planes for Thermal Expansion Control

K. Taylor

The thermal mismatch between leadless ceramic chip carriers and conventional PCB materials can be obviated by using integral planes of a low TCE material to constrain the thermal…

Laser Direct Photoplotting Without Aperture Wheels

S. Sugasawara

EOCOM, a part of the Gerber Scientific Instrument Company , is the pacesetter with direct imaging systems for printed circuit boards. The LDI™—1500 is its most recent…

Some Practical Observations on the Processes Involved in Surface Mounted Technology

A.C. Snow

This paper aims to highlight some of the problems encountered by potential designers, purchasers and users of Surface Mounted Technology and to offer some insight into the factors…

Providing Solderability Retention by means of Chemical Inhibitors

M. Bakszt

Protective cover coating of bare copper boards is necessary to resist long‐term storage. Both water‐soluble and rosin‐based fluxes are used in the evaluation. The inhibitors have…

Reflections on My Life as an Inventor: Part 2

P. Eisler

An abridged version of the previously unpublished writings of Paul Eisler, universally acknowledged as the inventor of the printed circuit board and many other technical…

Printed Hybrid Technology

P.G.B. Hamilton

The printed Hybrid Technology currently employed by ICL in their volume production of printed circuits is outlined. Details are given of the various problems eliminated by the use…

Pointing the Way: A Practical Guide to Drill‐bit Usage

D. Cox

Miniature carbide drills are the workhorse of PCB hole production, yet little care is exercised in their usage despite the fact that hole quality is primarily determined by the…

The Future of Electronics in Europe

T. Donnelly

The paper reviews major changes in technology, integrated circuit packaging, materials and surface mounting techniques, and assesses their impact on the printed circuit board…

Non‐conventional Substrates

G. Messner

This paper describes recent printed board applications in circuit manufacturing on novel non‐laminate substrates. It specifically discusses properties pertinent to metal core…

Internepcon/Semiconductor International '84 Singapore

With Singapore's multi‐racial heritage and colourful history making it such a fascinating place to explore, its choice by Cahners as a venue for this biennial exhibition is a…

ICT News

The Third Cahners Exposition Awards Dinner was held on Wednesday 17th October, 1984, in the Cameo Room, Metropole Hotel, during the course of the Internepcon Exhibition.

International Institute News

This event, organised by the Institute of Metal Finishing, will take place at The Post House Hotel, Leicester, on 20 March 1985. The Conference language will be English and…

Industry News

W. Canning Materials Ltd have announced the appointment of Mr W. E. I. Galloway as Managing Director with effect from 1st January, 1985. The Company is a leading manufacturer and…

New Products

Microcut Machine Tools have recently been appointed sole UK stockist for the ‘Cirbo’ range of solid Carbide Drills and Router Cutters. Extensive supplies will now be maintained at…

Cover of Circuit World



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Emerald Publishing Limited

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  • Associate Professor Pooya Davari