An experimental study on stress in hydrogenated amorphous silicon (a-Si:H)
films is presented. To explain the physical origin of the stress, a model b
ased on the atomic silicon clusters interaction is introduced. Our results
show that the stress can be reduced using the model considerations. This me
chanical stress reduction is achieved preserving low values of the hydrogen
concentration in the films, a feature that is important for electronic app
lications of this material. (C) 1999 Elsevier Science S.A. All rights reser
ved.