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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XIX
Presentation Title D-21: Interfacial Reactions of Ag-Au-xPd Alloys Wire Bonding with Al
Author(s) Chiao-Yi Yang, Kuo-Jung Chen, Wallace Chuang, Eckart Schellkes, Yee-Wen Yen
On-Site Speaker (Planned) Chiao-Yi Yang
Abstract Scope Recently, the wire bonding technology is the most widely used to connect chip and pad in the electronic packaging. Au-Ag alloys have good thermal and electrical conductivity and great ductility. They are suitable to replace the pure Au wire for the cost reduction. The interfacial reactions of several Au-Ag wires reacted with the Al pad at 150°C for various time, decapsulation and corrosion test were investigated in this study. The Au4Al phase was formed at the Au/Al interface. The Ag2Al phase was formed at Ag (coated Au)/Al, Ag (coated Pd)/Al, Au-95 wt.%Ag/Al and Ag/Al interface for 2000-h aging. When the aging time was increased to 3000 h, the Ag3Al phase was formed. For decapsulation, 95 vol.% HNO3 solution was a good solution to dissolve the mold compound. The result showed that the corrosion resistance order was Au > Ag (coated Au) > Ag (coated Pd) > Au-95 wt.%Ag.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

4D Characterization of Electromigration-induced Grain Boundary Damage of Cu Interconnects: X-ray Tomography Experiments and Phase-field Simulations
An Ab-initio Study on the Structural and Electrochemical Propeties of Na3V2(PO4)2F3 as Cathode Materials for Hybrid-ion Batteries
CALPHAD-assisted Analyses of BOF Slag Modification and Reduction
Challenges and Solutions for Experimental Investigation of Air and Moisture Sensitive Li Alloys
D-10: A Switching Model of Phase-change Memory by Combining Electrothermal and Phase-field Models
D-11: CALPHAD-assisted Analyses of BOF Slag Recovery
D-12: Comparison of Oxide Reduction Temperature between Highly <111>-Oriented Nanotwinned Cu and Regular Cu Films
D-13: Effects of Current Stressing on Mechanical Property and Microstructure of an Fe-Ni Alloy at Ambient Temperature
D-14: Effects of Plating Current Density on the Microstructure of Cu Pillars and Its Solderability
D-15: Effects of Surface Finish on the Interfacial Cu6Sn5 Morphology and Mechanical Characteristics in Solder Joints
D-16: From Electric Current-induced Lattice Strain to Electromigration Occurrence: An In-situ Study
D-17: Interfacial Reaction of Au-xAg/Al Couples
D-18: Interfacial Reactions in the Au/Sn-xZn/Cu Sandwich Couples
D-19: Interfacial Reactions in the Cu/Sn/Ni Sandwich Couples
D-20: Interfacial Reactions in the Sn/Au-xCu Couples
D-21: Interfacial Reactions of Ag-Au-xPd Alloys Wire Bonding with Al
D-22: Mechanisms of Abnormal Grain Growth of Al Bonding Wires under Annealing Process
Effects of Copper Electroplating Parameters on the Copper-based Solder Joint Reactions
Effects of Pd(P) Thickness on the Interfacial Reaction and Mechanical Properties of the Sn-3.5Ag/Au/Pd(P)/Ni(P) Microelectronic Joints
Electromigration Effect Upon Single-phase and Two-phase Ag-Cu Alloy: an In-situ Study
Electroplating of Rhodium using Pulse Current Plating Method
Full Battery Design for Li-ion Batteries Using CALPHAD Technique
High-throughput CALPHAD-type Calculation in Design of Coherent Precipitate-strengthening AlCuFeNiTi Multi-principal Element Alloys
In-situ Study of Electrochemical Migration of Tin in Presence of Contaminants
Interfacial Reaction in the Lead-free Solder/Cu-2.0Be (Alloy 25) Couples
Interfacial Reactions between Lead-free Solders and Electroless Co(B) Metallization
Interfacial Stability between High-temperature Lead-free Solders and Substrates
Investigation of Metal Filament Formation
Learning from the Ni3Sn2 for Cu6Sn5
Microstructure of Cu/Cu Joints using Sn-Coated Cu Particle Paste for High-temperature Application
Real-time Observation of the Accelerated Growth of (Cu,Ni)6Sn5 on Cu-xNi Current Collectors
Revisit the Blech Critical Product: Lattice Strain Induces Electromigration Effect
Study on Eelectromigration of Cu-Sn IMC Formation Due to Currents Stress and Temperature
Study on the Phase Diagrams of Bi-Te Binary and Bi-Te-RE (Yb, La, Ce, Nd, Sm, Tb, Er) Ternary Systems
The Effect of the Cu Preferred Orientation on the Adhesion between Cu and LCP in FCCL
Thermodynamic Modeling of the Cu-Mg-Si-Sn Quaternary System and Interpretation of Mg2(Si0.3Sn0.7)/Cu Thermoelectric Interconnections
Wafer Level SLID Bonding - Formation and Evolution of Microstructures
Zn Whisker Growth under High Temperature and Humidity Conditions

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