Titanium-tungsten contacts to silicon. II. Stability against aluminum penetration
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 1599-1605 |
Journal / Publication | Journal of Applied Physics |
Volume | 59 |
Issue number | 5 |
Publication status | Published - 1986 |
Externally published | Yes |
Link(s)
Abstract
An investigation of the thermal stability and Schottky behavior of Ti-W thin film contacts to n-Si in the presence of an Al overlayer is reported. Rutherford backscattering spectroscopy, glancing-incidence x-ray diffraction, and current-voltage measurements were used to characterize the multilayer contact structures. The low Schottky barrier height, 0.51 eV, of the Al/Ti 80W20/n-Si structure was repeatedly measured after 30-min anneals up to 500°C. This stability was improved to 600°C when a diffusion barrier layer of Ti30W 70 alloy was included. The detection and significance of Al penetration in low Schottky barrier height contacts to Si have been discussed.
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Citation Format(s)
Titanium-tungsten contacts to silicon. II. Stability against aluminum penetration. / Babcock, S. E.; Tu, K. N.
In: Journal of Applied Physics, Vol. 59, No. 5, 1986, p. 1599-1605.
In: Journal of Applied Physics, Vol. 59, No. 5, 1986, p. 1599-1605.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review