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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Advanced Microelectronic Packaging, Emerging Interconnection Technology and Pb-free Solder
Presentation Title Intermetallic Compound Analyses Provide Interfacial Reliability for Solder Connections in Electronics
Author(s) Mike Wolverton
On-Site Speaker (Planned) Mike Wolverton
Abstract Scope We report numerous combinations of solders and plated metals on components and circuit boards. A common finding is that the growth of diffusion compounds, at the solder-to-plating interface, is a precursor indicator of solder connection interfacial failure. The precursor is associated with vacancy accumulation and observation of Kirkendall voiding. Diffusion between plating and precipitation compounds leads to connection separation. Vacancy content accumulates into area voids as the diffusion compounds grow. The diffusion compounds occur concurrent with, or subsequent to, the precipitation compounds. The diffusion compounds are stoichiometrically richer in the plated metal than are the precipitation compounds. We show cross-sectional microstructures, and compound chemistry identifications, from the following solder-to-plating systems: tin-lead-to-gold, tin-lead-to-copper, indium-lead-to-gold, gold-germanium-to-nickel, tin-lead-to-iron-nickel, tin-lead-to-palladium, and lead-free solder connections to copper and iron-nickel. This document does not contain technology or technical data controlled under either the U.S. International Traffic in Arms Regulations or the U.S. Export Administration Regulations
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Comprehensive Approach on Understanding Electromigration Failure Kinetics with Varying UBM Thickness and Joint Geometry in WCSP Solder Interconnects
A Model Study of Bi Diffusion and Intermetallic Growth in Sn-Bi Low Temperature Soldering Systems
A Preliminary Study of the Dissolution of Bi in β-Sn using In Situ Scanning Electron Microscopy
Achieving Collapse-free Joint in 3D-package by Hybrid Solder Alloy with Reducing Thermal Budget Usage
Bonding and High-temperature Storage Performance of Die Attachment with Ag Paste Sintering on Bare Direct Bonding Aluminum (DBA) Substrate
Chlorination and Power Cycling Characteristics of Fine Au/Pd Coated Copper Wire
Comparison of Corrosion Resistance between Electroless and Electroplating Ni/Pd/Au Surface Finish on PCB
Compression Creep Behavior of Sn-Ag-Cu-Bi Pb-Free Solder Alloy
D-1 (Invited): Effects of Materials and Package Design on Warpage Control of Semiconductor Devices
D-2: A Novel Class of Multiscale Nanomaterials-based Thermal Interface Materials for High Temperatures, High Power Density Electronics
Determination of β-tin Slip Properties using Micro-pillar Tests and Crystal Plasticity Modelling
Development of Low Temperature Sn-Bi based Solder Alloys
Die-bonding Performance and Mechanism of Ag Micron Paste with Pressure-less Sintering
Different Electroplating Temperature Affecting on Mechanical Strength of Highly (111) Preferred Orientated Nanotwinned Copper (TMS 2020)
Effect of a Metallic Cap Layer on the Magnitude, Statistical Variation and Mechanism of Through-Silicon Via Extrusion
Effect of Bi and Zn Addition to the Properties of Sn-0.7Cu and Sn-0.7Cu-0.05Ni Solder Coating
Effect of Sn3.0 Ag 0.5Cu and Sn58Bi Solder Alloys on Through Silicon Via under Thermal Conditions
Effect of Solder Joint Geometry on Electromigration Failure Mechanism in Micro Solder Joint
Effects of Bismuth, Antimony, and Indium Alloying Elements on Microstructure of High Reliability Pb-Free Solders Alloys
Effects of Secondary Reflow on Solder Joint Microstructure and Lifetime
Electromigration in 2μm Nano-twinned Cu Redistribution Lines
Fatigue and Creep Properties of Sintered Ag Paste from Room Temperature to High Temperature
Formation of Cu-Cu Direct Bonding by Green Synthesized Approaches
Influence of Indium Addition on Microstructural Properties of Sn-rich Solder Joints
Influence of Substrates and Microalloying Additions on the Primary Intermetallic Growth of Lead-free Solder Joints
Intermetallic Compound Analyses Provide Interfacial Reliability for Solder Connections in Electronics
Investigation to Micro Friction Stir Spot Welding Al and Cu Sheets to Foils for Automotive Lithium-ion Battery Cells Assembly
Low Temperature Cu-Cu Bonding by Copper-based Paste with Small Amount Sn Additive
Low Temperature Polyimide-to-polyimide Direct Bonding with Low Curing Temperature Polyimide Films
Mechanical Reliability of Cu-filled Through Si via under Annealing and Thermal Cyclic Loading Conditions
Mechanisms of Electromigration in Bicrystal Sn Solder Joint by Correlative X-ray Tomography and Microscopy
Micro-mechanical Testing of Grain Boundary Sliding in a Tin Alloy
Micro Interconnect Mechanical Stability in Cryogenic Temperature Environments
Micropillar Compression Test of Tin-solder Microstructural Units to Reveal Slip Activity
Microstructure Evolution and Interfacial Growth of Intermetallic Compound for Cu/In/Cu Structure under Thermomigration
Modeling and Simulation of Pore Electromigration in Tin Solders
Modification of Traditional Pb-free Solders with Bi, Sb and In for Improved Reliability
Molecular Dynamics Study of the Effect of Ultrasonic Vibration on Evolution of Crystal Defects
On the Adhesion of a Sintered Ag Joint on a Cu Substrate using Laser Shocks Influence of Aging
Potential for Improving Sn-Cu Alloys as High-temperature Solders by the Suppression of Cu3Sn Phase
Pressureless Silver Sintering of SiC MOSFET Power Module for Vehicle
Recrystallized Shallow Grains as the Whisker Growth Sites in Large-grain Sn-alloy Films
Reducing Interfacial Voids in Cu/In/Cu Microbump with In-Sn-Cu Solder Alloy
Reliability Behavior of Surface Mount Devices Assembled with Bismuth Bearing Low-melt Solder Pastes
Role of Grain Boundaries in Electromigration and Thermomigration Related Failure : A Phase Field Simulation Study
Si and Ag Particles Sintering Technology For Die Attach
Study on the UBM Thickness and Current Flow Configuration Effects on Electromigration Failure Mechanism in Solder Interconnects
Synchrotron X-ray Study of Sn Electromigration, Sn Whisker Growth, and Residual Strain Evolution in A Blech Structure
The Growth and Coarsening Kinetics of Ag3Sn in SAC305 Solders
The Relation Between the Microstructure and Properties of SnAgCu/SnBiAg Mixed Assemblies, and Thermal History
Thermal Management through Networks of Highly Purified Boron Nitride Nanotubes
Tin Whisker Growth on Pb-Free, Bi-containing Solder Alloys after Ambient Temperature, High Humidity Storage
Using Applied Pressure to Make Tin Whiskers Grow: Measurements and Analysis

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