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ElectroComponent Science and Technology
Volume 7, Issue 1-3, Pages 163-170

Functional Trimming of Thick-Film Active Filters for Consumer and Industrial Applications

Magneti Marelli, Systems and Electronics Division, Pavia, Italy

Received 13 March 1980

Copyright © 1980 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.


Active filters, realized in thick film circuitry, can offer major advantages over more conventional wiring systems, including the ability to functionally trim them, using a computerized laser trimming system. This paper considers the adjustment methods used for two different active filters and shows how the methods can be extended to filters with more complicated characteristics.