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ElectroComponent Science and Technology
Volume 3 (1977), Issue 4, Pages 209-216

The Production of Complex Thin Film Circuits

Lucas Aerospace Limited, Engine Electronics Division, Birmingham, UK

Received 13 December 1976

Copyright © 1977 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In-house manufactured thin film circuits are used by Lucas Aerospace in gas turbine engine fuel control systems where stability and reliability in a harsh environment are required.

The construction of a complex active thin film circuit is reviewed with emphasis on some less obvious aspects of production. Where component attachment and engineering techniques used are thought to be of special interest a more detailed explanation is given.

As is normal in the avionics industry a high degree of system integrity is required so that quality control is essential. Therefore, the role of Quality Engineering in the production plan is described.