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Automated adaptive control of the reflow soldering of electronic assemblies

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conference contribution
posted on 16.01.2009, 15:24 authored by Paul ConwayPaul Conway, David Whalley, M. Wilkinson, David Williams
This paper describes a new technique for the monitoring and automated control of the reflow soldering process. The new technique combines state of the art infra-red (IR) sensor technology, coupled with application specific process control software, to provide a unique capability to both monitor actual product temperatures during the soldering process and to use this information to modify the process settings. The development of techniques to allow rapid variation of the heat transfer from the oven to the in-process Printed Circuit Assemblies (PCAs) allows the system to automatically adjust the soldering oven's process settings for each individual PCA passing through it. This product-by-product profiling facilitates the assurance of consistent thermal histories and also allows the oven to optimise its energy consumption to the demands of each product. Archiving of the reflow temperature profiles also provides full traceability to the reflow process. The incorporation of IR sensing technology also aids in determining/verifying the oven profile at the introduction of new PCA designs. This paper presents an overview of the construction and operation of the system and outlines the technical challenges that have been met and overcome.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

CONWAY, P.P.... et al., 1997. Automated adaptive control of the reflow soldering of electronic assemblies. IN : Twenty-First IEEE/CPMT International Electronics Manufacturing Technology Symposium, Austin TX, 13-15 Oct. pp.229 - 236.

Publisher

© IEEE

Version

VoR (Version of Record)

Publication date

1997

Notes

This is a conference paper [© IEEE] and is also available online at: http://ieeexplore.ieee.org/servlet/opac?punumber=4943 Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

ISBN

0780339290

Language

en