... ° C /85% relative humidity chamber. The adhesion strength with different conditions of temperature and humidity was performed using a die shear test. The series of standard reliability tests such as accelerated temperature cycle test, pressure cooker test, thermal humidity storage test, and high...

...D. Blass; P. Borgesen The effects of underfill selection on flip chip reliability were always a complex issue. Mechanical optimization of the underfill performance, achieved by the addition of appropriate fillers, is invariably a tradeoff between the adhesion and the coefficient of thermal...

... substrate on the interfacial adhesion, two kinds of MD models were examined in this study. The results revealed that the cuprous oxide content in the copper substrate had a large effect on the interfacial adhesion between the EMC and copper, which is consistent with the experimental observation. Molecular...

... of the Al bond pad. In addition, by comprehension of the effects of the multiple zincation process, the study includes investigating the Al dissolution rate and adhesion strength between eutectic a 37 Pb ∕ 63 Sn solder ball and an under bump metallurgy (UBM) interface. Scanning electron microscopy, energy...

...Liqiang Cao; Zonghe Lai; Johan Liu There has been steadily increasing interest in using electrically conductive adhesives as interconnecting materials in electronics manufacturing. Simple processing, low processing temperature and fine pitch capability are the major advantages of conducting...

...Mitul Modi; Suresh K. Sitaraman Titanium adhesive layers are commonly used in microelectronic and MEMS applications to help improve the adhesion of other metal layers to a silicon substrate. Such Ti/Si interfaces could potentially delaminate under externally applied mechanical loads, thermally...

..., Characterization, and Application , Vol. 2, Plenum Press, New York. Somasiri , N. L. D. , Zenner , R. L. D. , and Houge , J. C. , 1991 , “ A Process for Surface Texturing of Kapton Polyimide to Improve Adhesion to Metals ,” IEEE Trans. Compon., Hybrids, Manuf. Technol. , 14 ( 4 ), pp. 798...

...Woon-Seong Kwon; Hyoung-Joon Kim; Kyung-Wook Paik; Se-Young Jang; Soon-Min Hong Interface degradation between dissimilar materials in the flip chip packages with anisotropic conductive adhesive joint is susceptible to mechanical and electrical failure upon temperature cycling. Particularly...

...M. Y. Tsai; C. H. Hsu; C. N. Han The well-known, closed-form solution to thermal stresses of a die-substrate assembly is initially provided by Suhir in the mid-1980’s after Timoshenko [1] and Chen and Nelson [2] . It has been revised several times in its die attach (adhesive) peel solution by Suhir...

.... Inexpensive ceramic-silicone processing (CSP) of superconductor wire and other adhesion substrate coated materials, electronics and various bulk materials resulted in electricity throughput of up to 500 × copper wire throughput at significantly decreased operating voltage and energy losses. All HTS-CSP...

... soldering process. Furthermore it is important to note that, the bond stress at the toe is not necessarily zero, rather it approaches zero. 1 Perfect adhesive bonding exists at all joint interfaces before the application of thermomechanical loads 11 . 2 The local area of the boundary where...

... must therefore be controlled by selecting the appropriate mechanical properties of the adhesive film (ACF or NCF) and the build-up substrate material. Moreover, the interconnection reliability during moisture-resistance tests deteriorates because of stress relaxation near the glass-transition...

... interface due to high stress concentration and weak adhesion strength. The finite element analyses were implemented to address the stress distribution in the stacked die package and verified by the scanning acoustic microscope. It demonstrated that excellent package integrity could be obtained by applying...

...Timothy Ferguson, Mem. ASME; Jianmin Qu, Fellow ASME In a previous study, we found that moisture preconditioning strongly influenced the interfacial fracture toughness of the underfill/solder mask interface, decreasing the interfacial adhesion by approximately one-half for both classifications...

...Bernd Michel,, Guest Editor, Poly’2000 Co-chair; Kikuo Kishimoto,, Guest Editor, Poly’2000 Co-chair 12 12 2002 reliability polymers adhesion adhesives plastic packaging integrated circuit packaging fracture mechanics stress effects thermal management (packaging...

...Shoji Kamiya; Hironori Takahashi; Masumi Saka; Hiroyuki Abe´ CVD diamond particles were produced on silicon substrates under various conditions such as different methane concentration in the source gas mixture and the substrate temperature. Adhesive fracture toughness of these diamond particles...

..., 2001. Associate Editor: J. Lau. 12 July 2000 24 April 2001 02 05 2002 integrated circuit packaging moisture environmental degradation adhesion delamination fracture toughness encapsulation soldering masks Of particular interest in reliability studies...

... the interfacial adhesion. Roughened surfaces generally produce more cohesive failure; therefore, they are used commonly in practice to obtain better adhesion. This paper develops a fracture mechanics model that can be used to quantitatively predict the amount of cohesive failure once the surface roughness data...

...Zongrong Liu and; D. D. L. Chung In the above paper, p. 65, subsection “Sample Preparation and Air Firing Process,” the last line of the subsection, 850 C should be changed to 850 F. titanium alloys thick films electric resistance adhesion packaging 2001 ASME ...

... at a small proportion (<0.5 wt.%) to a thick film paste enhanced the adhesion between the thick film and the alumina substrate with negligible increase in the electrical resistivity. The use of titanium alloy powder instead of pure titanium powder is preferred. Better composition distribution...