Electrical failure and damage analysis of multi-layer metal films on flexible substrate during cyclic bending deformation

2011 ◽  
Author(s):  
Byoung-Joon Kim ◽  
Hae-A-Seul Shin ◽  
In-Suk Choi ◽  
Young-Chang Joo
Keyword(s):  
Flexible Substrate ◽  
Metal Films ◽  
Damage Analysis ◽  
Cyclic Bending ◽  
Bending Deformation ◽  
Electrical Failure

Electrical Failure and Damage Analysis of Multi-Layer Metal Films on Flexible Substrate during Cyclic Bending Deformation

2011 ◽  
Author(s):  
Byoung-Joon Kim ◽  
Hae-A-Seul Shin ◽  
In-Suk Choi ◽  
Young-Chang Joo
Keyword(s):  
Fatigue Resistance ◽  
Electrical Resistance ◽  
Metal Film ◽  
Flexible Substrate ◽  
Resistance Change ◽  
Cyclic Bending ◽  
Capping Layer ◽  
Bending Strain ◽  
Cu Film ◽  
Electrical Resistance Change

Abstract The electrical resistance Cu film on flexible substrate was investigated in cyclic bending deformation. The electrical resistance of 1 µm thick Cu film on flexible substrate increased up to 120 % after 500,000 cycles in 1.1 % tensile bending strain. Crack and extrusion were observed due to the fatigue damage of metal film. Low bending strain did not cause any damage on metal film but higher bending strain resulted in severe electrical and mechanical damage. Thinner film showed higher fatigue resistance because of the better mechanical property of thin film. Cu film with NiCr under-layer showed poorer fatigue resistance in tensile bending mode. Ni capping layer did not improve the fatigue resistance of Cu film, but Al capping layer suppressed crack formation and lowered electrical resistance change. The NiCr under layer, Ni capping layer, and Al capping layer effect on electrical resistance change of Cu film was compared with Cu only sample.

Modulation of magnetism induced by external stress in ultra-thin metal films on a flexible substrate

2016 ◽  
Vol 2016 (0) ◽  
pp. J2210201
Author(s):  
Shinya OTA ◽  
Ryo ASAI ◽  
Do Bang ◽  
Hiroyuki Awano ◽  
Takahiro KOZEKI ◽  
...  
Keyword(s):  
Flexible Substrate ◽  
Metal Films ◽  
External Stress ◽  
Thin Metal ◽  
Thin Metal Films

Fatigue and thermal fatigue damage analysis of thin metal films

2007 ◽  
Vol 47 (12) ◽  
pp. 2007-2013 ◽  
Author(s):  
G.P. Zhang ◽  
C.A. Volkert ◽  
R. Schwaiger ◽  
R. Mönig ◽  
O. Kraft
Keyword(s):  
Fatigue Damage ◽  
Thermal Fatigue ◽  
Metal Films ◽  
Thin Metal ◽  
Damage Analysis ◽  
Thin Metal Films ◽  
Fatigue Damage Analysis

scholarly journals Stiffness Reduction Process of CFRP under the Cyclic Bending Deformation

2014 ◽  
Vol 63 (9) ◽  
pp. 641-646
Author(s):  
Yoshinori YAMADA ◽  
Tomoaki KADOWAKI ◽  
Toshihiko SUMIYA ◽  
Masahiko HATA
Keyword(s):  
Reduction Process ◽  
Cyclic Bending ◽  
Bending Deformation ◽  
Stiffness Reduction

scholarly journals Cyclic-bending deformation of aluminum rectangular wire with preferred orientation 〈111〉 parallel to drawing direction

2020 ◽  
Vol 70 (2) ◽  
pp. 51-55
Author(s):  
Hayato Ikeya ◽  
Osamu Umezawa ◽  
Hiroshi Fukutomi
Keyword(s):  
Preferred Orientation ◽  
Cyclic Bending ◽  
Bending Deformation ◽  
Drawing Direction

scholarly journals Crystal lattice rotation and fatigue crack generation in aluminum wire under cyclic bending deformation

2019 ◽  
Vol 69 (6) ◽  
pp. 302-308
Author(s):  
Hayato Ikeya ◽  
Osamu Umezawa ◽  
Hiroshi Fukutomi
Keyword(s):  
Fatigue Crack ◽  
Crystal Lattice ◽  
Lattice Rotation ◽  
Aluminum Wire ◽  
Cyclic Bending ◽  
Bending Deformation ◽  
Crack Generation ◽  
Fatigue Crack Generation

scholarly journals Cyclic Bending Deformation and Fracture of Al and Al-1.0mass%Mg Alloy

2016 ◽  
Vol 12 ◽  
pp. 42-47 ◽  
Author(s):  
Hayato Ikeya ◽  
Hiroshi Fukutomi
Keyword(s):  
Mg Alloy ◽  
Cyclic Bending ◽  
Bending Deformation ◽  
Deformation And Fracture

scholarly journals OS0906 Cyclic Bending Deformation Property of TiNi Shape Memory Alloy for Brain Spatula

2012 ◽  
Vol 2012 (0) ◽  
pp. _OS0906-1_-_OS0906-2_
Author(s):  
Kento MITSUI ◽  
Kohei TAKEDA ◽  
Hisaaki TOBUSHI ◽  
Kazuhiro KITAMURA ◽  
Yukiharu YOSHIMI
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Property ◽  
Cyclic Bending ◽  
Bending Deformation
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