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Cu Ribbon Ultrasonic Bonding on Die-Top Nanotwinned Cu Films Evaporated on SiC Chips for Power Modules Tung Han Chuang1,2,a*, Chih Hsin Tsai3,b, Wei Chung Huang4,c, Jung Hsuan Chen4,d, Jing Yao Chang4,e, Chun Hao Chen5,f, Yin Hsuan Chen1,g, YenTing Chen1,h and Ang Ying Lin1,i 1Inst. of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan 2Ag Materials Technology Co.
As the bonding materials, Aluminum (Al) thick wire or ribbon is traditionally employed for power modules using ultrasonic bonding.
(Amtc) in Hsinchu Science Park, Taiwan.
It was also sponsored by the cooperation programs of National Taiwan University with Ag Materials Technology Co.
Chuang, "Growth of Cu nanotwinned films on surface activated SiC chips," Journal of Materials Science: Materials in Electronics, vol. 34, no. 23, p. 1677, 2023

However, many harmful substances released continuously from the decoration materials, which can be detrimental to the very vulnerable indoor air quality and affect the efficiency and physical health of the staff long-term working in this environment (Sun 2005).
All the selected offices are with the same size, the same decor and decoration materials, the same floor and the same orientation.
Acknowledgement This work is supported in part through the Scientific Research Fund of the National Natural Science Funds Projects (50878078).
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Materials and methods Cultivation.
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Materials Studio 4.3 was utilized for simulation.
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In this paper, FA-FGD mortar and middle-strength concrete, whose binding materials were discussed in Part I, were manufactured and tested the main performances.
Fig.1 Drying shrinkage (unit: ×10-6mm/mm) of mortar with aging As known, cement-based materials had quite large drying shrinkage at early ages to result in early cracking, affecting the strength development at later ages and also durability.
And moderate more LFA-FGD resulted in higher slump, which was reflected from the increasing slump with the reducing W/B ratio on the ground of the same binding materials used.
Journal of Tongji University (Natural Science), 2008(01):16~21 [4] GAO Ying-li, CHEN Yu; WANG Di, et al.
Journal of Sichuan University (Engineering Science Edition), 2010, 42(02):225~231 [5 WANG Di, ZHU Meng-liang, CHEN Yu, et al.

Experimental material is coal gangue of Ping Ding Shan Mining Industry and local corn straw.
Table 1 Synthesis Combustion characteristic parameters Material Ti (℃) Th(℃) Sn(min-2K-3) Coal gangue 508 657 3.25E-08 Corn straw 262 483 1.08E-06 Mixture( 8:2) 294 644 4.54E-08 Mixture (7:3) 280 622 6.36E-08 Mixture (5:5) 271 630 1.05E-07 Table2 Combustion kinetics parameters Material E (KJ/mol) A(1/min) Correlation coefficient Coal gangue 83.75 0.9995 4.47E+04 Corn straw 102.11 0.9981 2.17E+09 57.42 0.9941 1.01E+04 Mixture( 8:2) 43.33 0.9972 5.54E+02 53.31 0.9922 6.91E+02 Mixture (7:3) 55.62 0.9897 1.56E+02 43.21 0.9865 7.32E+04 Mixture (5:5) 62.12 0.9857 7.32E+04 Conclusion Experiment show that coal gangue has characteristics of high ignition temperature and poor combustion.
Burning effect depends on the material mixture ratio with coal gangue and corn straw.
[3] Ling Zeng and SHuhua Gu, Development of energy forestry, agriculture for china energy safe, Soft Science, Beijing, vol. Ⅸ, 2005, pp. 79–83
A Study of the Characteristics of Mixed burning of Municipal Sewage Sludge and Coal by a TG Method：submitted to Journal of Engineering for Thermal Energy and power（2003）

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At the same time, according to the frame material’s S-N curve and character of the frame, the frame’s S-N curve was received.
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Microstructure and Mechanical Properties ofAs-forgedTi-47Al-2Cr-2Nb-Y Alloy Shuzhi Zhang1, a, Fantao Kong1, b, Yuyong Chen1, c, Shulong Xiao1,d and Chao Cao2,e 11School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, PR China 2 Sany Industry Town, Economic and Technological Development Zone, Chang sha, Hunan, 410100, PR China azhshzh1984@163.com, bkft@hit.edu.cn, cyychen@hit.edu.cn, dxiaoshulong@hit.edu.cn, extuboycao@126.com Keywords: Hot forged, TiAl based alloy, Microstructure, Mechanical properties.
The parent materials used in this study contain Ti sponge, high purity Al, Al–Nb, Al-Cr and Al–Y interalloys.
Fig.1a) shows the Microstructure of this as-cast material.
Fig. 5 Fracture surfaces of as-forged Ti-47Al-2Cr-2Nb-Y alloy at different temperatures: a) room temperature, b) 700˚{TTP}730 C, c) 800˚{TTP}730 C and d) 900˚{TTP}730 C Acknowledgements This research was sponsored by State Key Laboratory for Advanced Metal and Materials foundation (Project number: 20092D-02), National Natural Science Foundation of China (Project number: 51074058) and National Basic Research Program of China (Project number: 2011CB605502).
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