Residual stress anisotropy, stress control, and resistivity in post cathode magnetron sputter deposited molybdenum films

1988 ◽  
Vol 6 (5) ◽  
pp. 2914-2920 ◽  
Author(s):  
R. E. Cuthrell ◽  
D. M. Mattox ◽  
C. R. Peeples ◽  
P. L. Dreike ◽  
K. P. Lamppa
1988 ◽  
Vol 119 ◽  
Author(s):  
D. M. Mattox ◽  
R. E. Cuthrell

AbstractAtomistically deposited films may form with high residual stresses which may be either tensile or compressive in nature. These film stresses represent stored strain energy which may affect the adhesion of the film-substrate couple and in the limit may cause spontaneous fracture at or near the film-substrate interface (loss of adhesion). In the post cathode magnetron sputter deposition of molybdenum films, we have found that the intrinsic film stresses are generally anisotropic and may easily exceed the fracture or adhesive strength of the film-substrate couple. The residual stress anisotropy in the film is dependent on the orientation with respect to the post cathode and the magnitude and nature of the stresses are very dependent on the deposition conditions, particularly gas pressure during sputtering. By using a pressure-cycling technique, we have deposited thick (5 microns) films of molybdenum which have little residual stress or stress anisotropy.


2002 ◽  
Vol 19 (7) ◽  
pp. 964-966 ◽  
Author(s):  
Wu Yong-Gang ◽  
Gu Chun-Shi ◽  
Cao Er-Hua ◽  
Wang Zhan-Shan ◽  
Wei Jun-Ming ◽  
...  

2003 ◽  
Vol 76 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Y.G. Wu ◽  
E.H. Cao ◽  
Z.S. Wang ◽  
J.M. Wei ◽  
W.X. Tang ◽  
...  

2002 ◽  
Vol 92 (1) ◽  
pp. 310-319 ◽  
Author(s):  
David L. Young ◽  
Helio Moutinho ◽  
Yanfa Yan ◽  
Timothy J. Coutts

1999 ◽  
Vol 594 ◽  
Author(s):  
Alex A. Volinsky ◽  
Neville R. Moody ◽  
William W. Gerberich

AbstractThe practical work of adhesion has been measured in thin aluminum films as a function of film thickness and residual stress. These films were sputter deposited onto thermally oxidized silicon wafers followed by sputter deposition of a one micron thick W superlayer. The superlayer deposition parameters were controlled to produce either a compressive residual stress of 1 GPa or a tensile residual stress of 100 MPa. Nanoindentation testing was then used to induce delamination and a mechanics based model for circular blister formation was used to determine practical works of adhesion. The resulting measured works of adhesion for all films between 100 nm and 1 μm thick was 30 J/m2 regardless of superlayer stress. However, films with the compressively stressed superlayers produced larger blisters than films with tensile stressed superlayers. In addition, these films were susceptible to radial cracking producing a high variability in average adhesion values.


2014 ◽  
Vol 255 ◽  
pp. 37-42 ◽  
Author(s):  
J. Kulczyk-Malecka ◽  
P.J. Kelly ◽  
G. West ◽  
Clarke G.C.B. ◽  
J.A. Ridealgh

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