relation: http://miis.maths.ox.ac.uk/miis/390/
title: The Eect of Mechanical Loading on the Frequency of an Oscillator Circuit
creator: Ward, J.A.
creator: Lapin, V.
creator: Lee, W.
subject: None/Other
description: We investigate the effect of mechanical strain on the frequency of an electronic oscillator embedded in an integrated circuit. This analysis is aimed at explaining a 1% inaccuracy in the oscillator frequency under test conditions prescribed by a leading supplier of semi-conductor devices. During the test the package containing the oscillator was clamped to a circuit board by mechanical pressure. By considering the nature of the oscillator we show that tensile strains of the order of 10^-4 could explain the observations via the piezoresistance effect. Both a simple one-dimensional analysis based on the beam equation and an elastic finite element simulation show that strains of this magnitude can be generated during the test.
date: 2009
type: Study Group Report
type: NonPeerReviewed
format: application/pdf
language: en
identifier: http://miis.maths.ox.ac.uk/miis/390/1/ESGI70_2.pdf
identifier:   Ward, J.A. and Lapin, V. and Lee, W.  (2009) The Eect of Mechanical Loading on the Frequency of an Oscillator Circuit.  [Study Group Report]