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Low cost technique for measuring in situ strain of nanostructures

TitoloLow cost technique for measuring in situ strain of nanostructures
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2005
AutoriRizzo, Antonella, Capodieci Laura, Rizzo D., and Galietti U.
RivistaMaterials Science and Engineering C
Volume25
Paginazione820-825
ISSN09284931
Parole chiavecooling, Deposition, Electric resistance, Generic stress evolution, in situ measurement, Intrinsic stress, Metallic films, Metallic thin films, Nanostructured materials, Strain gages, Strain measurement, Tensile stress
Abstract

A novel, inexpensive device for measuring the strain of thin films during the deposition process is described. The measurement of the electrical resistance of the commercial strain gauge provides the strain values from which the stress of the film/substrate can be derived. Metallic thin films have been investigated over temperatures ranging from 22 to 100 °C. Plotting residual strain after cooling, it was possible to obtain the thermal strain component and its subtraction it was possible determine the intrinsic component strain. We observed a generic stress evolution from compressive to tensile, then back to compressive stress as the film thickened, in silver and copper layers. The performance of the measuring system are presented and discussed. Advantages and limitations of usage of the system are given as a conclusion. © 2005 Published by Elsevier B.V.

Note

cited By 1

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-27744432552&doi=10.1016%2fj.msec.2005.06.029&partnerID=40&md5=897741f4484b7b0fdbd88b3887935a4b
DOI10.1016/j.msec.2005.06.029
Citation KeyRizzo2005820