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Article
Publication date: 1 February 1980

Geared toward engineers, managers and supervisors in the areas of quality, manufacturing engineering and production, ‘Quality Factors in Fabricating Printed Circuit Boards

Abstract

Geared toward engineers, managers and supervisors in the areas of quality, manufacturing engineering and production, ‘Quality Factors in Fabricating Printed Circuit Boards’ will take place in Dallas, May 23rd, Boston, June 19th, Chicago, October 3rd and Orlando, November 21st. This full day seminar examines techniques and rationale for inspection at various stages in the manufacturing process.

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Circuit World, vol. 6 no. 3
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 1 February 1993

Despite recent economic gloom, Bolton based Vantage Circuit Products Ltd have achieved continued growth and have recently appointed Bernard Mulhall as Sales Manager…

Abstract

Despite recent economic gloom, Bolton based Vantage Circuit Products Ltd have achieved continued growth and have recently appointed Bernard Mulhall as Sales Manager responsible for their rapidly developing business in chemicals and materials for the electronics industry in the South of England.

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Circuit World, vol. 19 no. 3
Type: Research Article
ISSN: 0305-6120

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Circuit World, vol. 30 no. 1
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 1 September 2006

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Circuit World, vol. 32 no. 3
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 1 December 2006

J.H. Ling

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Circuit World, vol. 32 no. 4
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 1 September 2004

Michael Weinhold and Raymund Kwok

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Circuit World, vol. 30 no. 3
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 1 December 2004

John Ling

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Circuit World, vol. 30 no. 4
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 1 June 2006

Sameh Saad, Eaid Khalil, Cliff Fowkes, Ivan Basarab‐Horwath and Terrence Perera

To highlight the differences and common features of taboo search (TS) and genetic algorithms (GA) in solving the problem of board‐type sequencing on the assembly line…

Abstract

Purpose

To highlight the differences and common features of taboo search (TS) and genetic algorithms (GA) in solving the problem of board‐type sequencing on the assembly line simultaneously with the combined problem of feeder assignment and component placement sequencing in the printed circuit board (PCB) industry.

Design/methodology/approach

Two metaheuristics (search techniques) are used to solve three problems associated with the PCB assembly line: TS and GA. The implemented approach is used to solve the three problems on a single pick‐and‐place sequential machine with a stationary board table and stationary feeders, and with the use of the Euclidean metric.

Findings

The achieved results show a satisfactory reduction in assembly time, when TS and GA are compared with a random solution, with a slight superiority of TS over GA. However, the program running time is longer for TS.

Practical implications

The hypothetical case study used shows that in real life the savings could reach an average of 6 per cent when TS is used. Slightly lower savings are possible when GA is used.

Originality/value

This paper provides a clear insight into how some of the problems associated with the production of PCBs can be solved simultaneously using metaheuristics such as TS and GA.

Details

Journal of Manufacturing Technology Management, vol. 17 no. 4
Type: Research Article
ISSN: 1741-038X

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Article
Publication date: 16 July 2020

Chong Hooi Lim, M.Z. Abdullah, I. Abdul Azid, C.Y. Khor, M.S. Abdul Aziz and M.H.H. Ishaik

The purpose of this study is to investigate heat transfer and deformation of flexible printed circuit board (FPCB) under thermal and flow effects by using fluid structure…

Abstract

Purpose

The purpose of this study is to investigate heat transfer and deformation of flexible printed circuit board (FPCB) under thermal and flow effects by using fluid structure interaction. This study simulate the electronic cooling process when electronic devices are generating heat during operation at FPCB under force convection.

Design/methodology/approach

The thermal and flow effects on FPCB with attached ball grid array (BGA) packages have been investigated in the simulation. Effects of Reynolds number (Re), number of BGA packages attached, power supplied to the BGA packages and size of FPCB were studied. The responses in the present study are the deflection/length of FPCB (δ/L) and Nusselt number (Nu).

Findings

It is important to consider both thermal and flow effects at the same time for understanding the characteristic of FPCB attached with BGA under operating condition. Empirical correlation equations of Re, Prandtl number (Pr), δ/L and Nu have been established, in which the highest effect is of Re, followed by Pr and δ/L. The δ/L and Nu¯ were found to be significantly affected by most of the parametric factors.

Practical implications

This study provides a better understanding of the process control in FPCB assembly.

Originality/value

This study provides fundamental guidelines and references for the thermal coupling modelling to address reliability issues in FPCB design. It also increases the understanding of FPCB and BGA joint issues to achieve high reliability in microelectronic design.

Details

Circuit World, vol. 47 no. 2
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 1 February 2002

N.‐S. Ong and W.‐C. Tan

In order to handle high and rapid production demands, printed circuit board (PCB) manufacturers have employed high‐speed surface mount machines into their assembly lines…

Abstract

In order to handle high and rapid production demands, printed circuit board (PCB) manufacturers have employed high‐speed surface mount machines into their assembly lines. These machines have abilities of fast component placements, but provide challenges for process engineers to optimise the component placement sequences and feeder arrangements via effective planning. A computer program was developed based on operating concepts using genetic algorithm, to solve for various component placement sequencing planning of the high‐speed chipshooter. Genetic algorithms are a class of general purpose search methods based on the concepts of genetic evolution and survival of the fittest. The program provides information on component placement sequences and feeder arrangements for optimal assembly times. Initial tests have shown that the size of the parent space affects the convergence of the solutions during iterations. Finally, comparisons of results have shown improvement over those previously obtained by other researchers.

Details

Integrated Manufacturing Systems, vol. 13 no. 1
Type: Research Article
ISSN: 0957-6061

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