TANAKA Establishes Bonding Technology for High-Density Semiconductor Mounting Using AuRoFUSE Preforms
March 12, 2024 | JCN NewswireEstimated reading time: 1 minute
TANAKA Kikinzoku Kogyo K.K., which develops industrial precious metals products as one of the core companies of TANAKA Precious Metals, announced that it has established a gold particle bonding technology for high-density mounting of semiconductors using AuRoFUSE™ low-temperature fired paste for gold-to-gold bonding.
AuRoFUSE™ is a composition of submicron-sized gold particles and a solvent that creates a bonding material with low electrical resistance and high thermal conductivity to achieve metal bonding at low temperatures. Using AuRoFUSE™ preforms (dried paste forms), this technology can reach 4 μm fine-pitch mounting with 20 μm bumps. Formed through a thermocompression bonding process (20 MPa at 200°C for 10 seconds), AuRoFUSE™ preforms exhibit compression of approximately 10% in the compressive direction while showing minimal deformation in the horizontal direction. This gives them sufficient bonding strength1 for practical applications, making them suitable for use as gold bumps. With the main component being gold, which has a high level of chemical stability, AuRoFUSE™ preforms also provide excellent reliability after mounting.
This technology enables miniaturization of semiconductor wiring and greater integration (higher density) for various types of chips. It is expected to contribute to the high-level technical innovation required of advanced technologies, including optical devices such as light-emitting diodes (LEDs) and semiconductor lasers (LDs), and use in digital devices such as personal computers, smartphones, and in-vehicle components.
TANAKA will actively distribute samples of this technology in the future to promote greater awareness in the marketplace.
Suggested Items
Real Time with… IPC APEX EXPO 2024: Exploring the Future of Surface Finishes
04/25/2024 | Real Time with...IPC APEX EXPOJoe McGurran, product marketing director for MKS Atotech, looks into the future of surface finishes, discussing less nickel, reduced thickness, technologies influencing HDI and UHDI, and the benefits of nickel-free surface finishes. He also touches on popular finishes like ENIG and palladium immersion gold and discusses the value proposition of making a change.
Hentec/RPS Publishes an Essential Guide to Selective Soldering Processing Tech Paper
04/17/2024 | Hentec Industries/RPS AutomationHentec Industries/RPS Automation, a leading manufacturer of selective soldering, lead tinning and solderability test equipment, announces that it has published a technical paper describing the critical process parameters that need to be optimized to ensure optimal results and guarantee the utmost in end-product quality.
Reassessing Surface Finish Performance for Next-gen Technology, Part 2
03/04/2024 | Frank Xu, PhD and Martin Bunce of MacDermid Alpha, and John Coonrod of Rogers Corp.The introduction of 5G/6G has created a growing demand for faster rates of data transfer and operation at higher frequencies, pushing signals to travel toward the outer edges of conductors. As a result, the surface finish applied over the copper circuitry is now gaining more attention.
Indium to Feature Precision Au-Based Die-Attach Preforms at SPIE Photonics West
01/12/2024 | Indium CorporationIndium Corporation® will feature its high-reliability, Au-based precision die-attach (PDA) preforms for critical laser and RF applications at SPIE Photonics West, Jan. 27-Feb. 1, in San Francisco.
Smart Factory Insights: The Sustainability Gold Rush
01/02/2024 | Michael Ford -- Column: Smart Factory InsightsA gold rush represents an opportunistic, get-rich-quick scheme. With just one or very few potential winners in each case, most participants are left disappointed with their share, especially when compared to how much effort they put in. These scenarios are usually not thought through very well, even by the winners. When it comes to sustainability in manufacturing, I’ve seen a gold rush of sorts to find solutions, but the pieces are disjointed and not uniform. Sustainability needs to be a forever thing—not a race to find gold, but rather a race to work together.