In a significant advancement for the semiconductor industry, SHW Tech, a bonding equipment developer based in Kofu City, Yamanashi Prefecture, has successfully achieved room-temperature direct bonding of Silicon Carbide (SiC) with Silicon and Silicon Carbide with Sapphire. This milestone was reached in collaboration with National Cheng Kung University in Taiwan.
SHW Tech has established a comprehensive system that spans from research prototyping to mass production verification and is actively promoting the commercialization of this technology.
The Challenge: Bonding Dissimilar Materials Conventionally, directly bonding Silicon Carbide to Silicon, and particularly Silicon Carbide to Sapphire, has been an arduous task. The primary obstacles include the extreme hardness of these materials and the significant difference in their coefficients of thermal expansion. Traditional high-temperature bonding methods often result in material stress, warping, or cracking due to these mismatches.
The Solution: Ion Flow Bonding To overcome these barriers, SHW Tech developed a proprietary technology known as "Ion Flow Bonding" (IFB). This innovative method allows for strong adhesion at room temperature, eliminating the thermal stress associated with heat-based processes. The company has secured patents for this technology in both Japan and Taiwan, solidifying its competitive edge.
Impact and Future Prospects The ability to bond Silicon Carbide and Sapphire at room temperature opens new possibilities for power electronics and optoelectronic devices, where effective heat dissipation and optical integration are critical. By combining the high thermal conductivity and electrical efficiency of Silicon Carbide with the optical and mechanical properties of Sapphire, manufacturers can create next-generation devices with improved performance and reliability.
SHW Tech is now positioned to support the industry through the entire development cycle, promising to accelerate the adoption of these advanced hybrid materials in the global market.
