A possible explanation of the increase of the electrical resistance of thin metal films at low temperatures and small field strengths

Physica ◽  
1951 ◽  
Vol 17 (8) ◽  
pp. 777-780 ◽  
Author(s):  
C.J Gorter
1985 ◽  
Vol 40 (2) ◽  
pp. 161-163 ◽  
Author(s):  
H.-U. Finzel ◽  
P. Wißmann

The thickness dependence of the electrical resistance of ultra-thin metal films is calculated under the assumption that atoms or clusters of equal shape and size impinge and stick upon the substrate with statistical equipartition. The deposition process is simulated with the aid of a random generator. By network analysis an initially strong and then weaker decrease of the resistance with increasing film thickness is found.


1985 ◽  
Vol 40 (10) ◽  
pp. 1066-1068 ◽  
Author(s):  
H.-U. Finzel ◽  
P. Wißmann

The thickness dependence of the absolute temperature coefficient of the resistance of ultra-thin metal films is calculated with the help of Monte-Carlo calculations already successfully applied to the simulation of the electrical resistance. An initially strong increase and then a weaker decrease of the ATCR with increasing thickness is found.


1979 ◽  
Vol 43 (22) ◽  
pp. 1690-1690 ◽  
Author(s):  
G. J. Dolan ◽  
D. D. Osheroff

1979 ◽  
Vol 43 (10) ◽  
pp. 721-724 ◽  
Author(s):  
G. J. Dolan ◽  
D. D. Osheroff

Author(s):  
L. M. Gignac ◽  
K. P. Rodbell

As advanced semiconductor device features shrink, grain boundaries and interfaces become increasingly more important to the properties of thin metal films. With film thicknesses decreasing to the range of 10 nm and the corresponding features also decreasing to sub-micrometer sizes, interface and grain boundary properties become dominant. In this regime the details of the surfaces and grain boundaries dictate the interactions between film layers and the subsequent electrical properties. Therefore it is necessary to accurately characterize these materials on the proper length scale in order to first understand and then to improve the device effectiveness. In this talk we will examine the importance of microstructural characterization of thin metal films used in semiconductor devices and show how microstructure can influence the electrical performance. Specifically, we will review Co and Ti silicides for silicon contact and gate conductor applications, Ti/TiN liner films used for adhesion and diffusion barriers in chemical vapor deposited (CVD) tungsten vertical wiring (vias) and Ti/AlCu/Ti-TiN films used as planar interconnect metal lines.


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