Soldering and Bonding in Contemporary Electronic Device Packaging.

Area of Science:

• Materials Science
• Electrical Engineering
• Semiconductor Manufacturing

Background:

• Electronic packaging is crucial for transforming chips into functional devices.
• Soldering and bonding are fundamental processes in electronic packaging assembly.
• Evolving packaging architectures necessitate advancements in soldering and bonding technologies.

Purpose of the Study:

• To provide a comprehensive overview of soldering and bonding techniques in electronic packaging.
• To detail various wafer bonding, die attachment, and wire bonding methods.
• To discuss the significance of bump bonding for 3D-SiP packages and emerging trends.

Main Methods:

• Introduction to direct and indirect wafer bonding technologies.
• Detailed explanation of five die attachment processes.
• In-depth description of ball bonding and wedge bonding in wire bonding.
• Exploration of flip chip bonding and bump fabrication methods.

Main Results:

• Conventional and advanced soldering/bonding processes are essential in device packaging.
• Bump bonding, particularly copper bump technology, is a key area in advanced packaging for 3D-SiP.
• Surface mount and sealing technologies are also relevant in electronic device assembly.

Conclusions:

• The paper offers valuable insights into contemporary soldering and bonding practices for electronic packaging researchers.
• Understanding these techniques is vital for the development of advanced electronic devices and systems.
• Continued research in bonding technologies, especially for 3D integration, is critical for future advancements.