Intermetallic Compound Formation in Au/Al Thermosonic Wire Bonding During High Temperature Annealing at 150 �C as a Function of Wire Material

Author(s):  
R. Klengel ◽  
H. Knoll ◽  
M. Petzold ◽  
M. Wohnig ◽  
Lutz Schrapler
2018 ◽  
Vol 938 ◽  
pp. 41-45
Author(s):  
K.O. Akimov ◽  
E.N. Boyangin ◽  
Vladimir E. Ovcharenko

The results of investigation of the time and power parameters influence of high-temperature synthesis under pressure on the grain structure formation and strength properties of the Ni3Al intermetallic compound are presented and discussed. Dependences of the grain size in the intermetallic compound synthesized under pressure and its strength properties on the value of the preload on the initial powder mixture (3Ni + Al) and on the delay time of pressure application to the thermoreacting system were determined from the time of initiation of intermetallic compound formation volumetric exothermic reaction.


2020 ◽  
Vol 272 ◽  
pp. 127891 ◽  
Author(s):  
Li Pu ◽  
Yingxia Liu ◽  
Yong Yang ◽  
Quanfeng He ◽  
Ziqing Zhou ◽  
...  

1998 ◽  
Vol 13 (1) ◽  
pp. 37-44 ◽  
Author(s):  
C. Y. Liu ◽  
K. N. Tu

We have investigated the wetting angle, side band growth, and intermetallic compound formation of seven SnPb alloys on Cu ranging from pure Sn to pure Pb. The wetting angle has a minimum near the middle composition and increases toward pure Sn and pure Pb, but the side band growth has a maximum near the middle composition. The intermetallic compounds formed are Cu6Sn5 and Cu3Sn for the eutectic and high-Sn alloys, yet for the high-Pb alloys, only Cu3Sn can be detected. While no intermetallic compound forms between Cu and pure Pb, the latter nevertheless wets the former with an angle of 115°. The driving force of a wetting reaction, which may be affected by the free energy gain in compound formation, is discussed by assuming that rate of compound formation is fast.


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