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2017 | OriginalPaper | Buchkapitel

16. Electrical Compensation of Mechanical Stress Drift in Precision Analog Circuits

verfasst von : Mario Motz, Udo Ausserlechner

Erschienen in: Wideband Continuous-time ΣΔ ADCs, Automotive Electronics, and Power Management

Verlag: Springer International Publishing

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Abstract

Mechanical stress has a notable effect on the parameters of most micro-electronic devices. This leads to inaccuracies and drifts, which are relevant for precision analog circuits. In contrast to built-in stress during wafer manufacturing processes, mechanical stress caused by packaging process shows a marked short and long term drift mainly due to moisture absorption. For economic plastic encapsulated packages with high reliability for automotive applications it seems impossible to avoid the drift of mechanical stress. A cost efficient way to tackle this problem is to measure the mechanical stress on-chip and to compensate for its effects by way of an electronic circuit. The paper explains the main concepts and challenges of these mechanical stress compensation circuits. It shows which classes of circuits are suited for this technique, which are the costs and benefits.

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Metadaten
Titel
Electrical Compensation of Mechanical Stress Drift in Precision Analog Circuits
verfasst von
Mario Motz
Udo Ausserlechner
Copyright-Jahr
2017
Buch
Wideband Continuous-time ΣΔ ADCs, Automotive Electronics, and Power Management

Print ISBN: 978-3-319-41669-4

Electronic ISBN: 978-3-319-41670-0

Copyright-Jahr: 2017

DOI
https://doi.org/10.1007/978-3-319-41670-0_16

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