Tadatomo Suga

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About

Tadatomo Suga is a pioneering figure in advanced packaging and wafer bonding technologies, best known for developing the surface activated bonding (SAB) concept. His key research areas include three-dimensional integration, fine-pitch interconnect fabrication, and ultra-precision wafer-level bonding for semiconductor packaging. Suga's major contributions center on the invention of a robot-controlled wafer bonder capable of achieving sub-micron alignment accuracy for wafers up to 8 inches, a breakthrough that enabled reliable room-temperature bonding without intermediate layers. His 2002 paper on this SAB-based bonder, with 16 citations, laid the groundwork for modern 3D stacking and heterogeneous integration. Additionally, his work on fine-pitch tin bump fabrication using electrodeposition addressed critical challenges in system-in-package applications, pushing solder bump densities below 100 μm pitch. Suga's innovations have had lasting impact on the semiconductor industry, enabling higher performance and miniaturization in microelectronics. His research continues to influence next-generation packaging technologies, making him a key reference for students and engineers working on advanced interconnects and wafer bonding processes.