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IBM Journal of Research and Development  
Volume 19, Number 2, Page 127 (1975)
Nontopical Issue
  Full article: arrowPDF   arrowCopyright info


Polarization and Depolarization in PSG Films

by L. Kasprzak, A. Hornung
The temperature dependence of the polarization in thin phosphosilicate glass (PSG) films is characterized by an activation energy ΔH = (0.39 + 0.039Et) eV, whereas the decay mechanism has an activation energy of 0.5 eV. The flatband voltage shift due to PSG polarization was linear with applied fields as large as 5.5 × 106 V • cm−1. The effective time constants for the polarization and depolarization are distinctly different. Polarization occurs an order of magnitude faster than depolarization. A physical model has been postulated to explain the observed effects.
Related Subjects: Films; Physics, solid state