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Direct formation of Cu nano-dendritic structure on substrate by dynamic hydrogen bubble template for organic-free sintered Cu-to-Cu bonding
Ji-Hyun Kim, Hiroaki Tatsumi, Hiroshi Nishikawa
Surfaces and Interfaces Vol. 62 p. 106268-106268 2025/04/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Atomistic behavior of Cu–Cu solid-state bonding in polycrystalline Cu with high-density boundaries
Hiroaki Tatsumi, C.R. Kao, Hiroshi Nishikawa
Materials & Design Vol. 250 p. 113576-113576 2025/02/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Transparent Liquid Ag-Based Complex for the Facile Preparation of Robust Sintered Ag Joints in Power Devices
Chuncheng Wang, Hiroaki Tatsumi, Liang Xu, Tao Zhao, Pengli Zhu, Rong Sun, Hiroshi Nishikawa
ACS Applied Electronic Materials Vol. 6 No. 3 p. 1718-1728 2024/02/28 Research paper (scientific journal)
Publisher: American Chemical Society (ACS)
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Quasi-direct Cu–Si3N4 bonding using multi-layered active metal deposition for power-module substrate
Hiroaki Tatsumi, Seongjae Moon, Makoto Takahashi, Takahiro Kozawa, Eiki Tsushima, Hiroshi Nishikawa
Materials & Design Vol. 238 p. 112637-112637 2024/02/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Analysis of microstructures and fractures in Ag–In transient liquid phase bonded joints
Xunda Liu, Hiroaki Tatsumi, Jianhao Wang, Zhi Jin, Zhong Chen, Hiroshi Nishikawa
Materials Science and Engineering: A 2024/02 Research paper (scientific journal)
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Impact of crystalline orientation on Cu-Cu solid-state bonding behavior by molecular dynamics simulations
Hiroaki Tatsumi, C.R. Kao, Hiroshi Nishikawa
Scientific Reports Vol. 13 2023/12 Research paper (scientific journal)
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Strength-enhanced Sn–In low-temperature alloy with surface-modified ZrO2 nanoparticle addition
Shunya Nitta, Hiroaki Tatsumi, Hiroshi Nishikawa
Journal of Materials Science: Materials in Electronics 2023/11 Research paper (scientific journal)
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Anisotropic highly conductive joints utilizing Cu-solder microcomposite structure for high-temperature electronics packaging
Tatsumi, H., Nishikawa, H.
Materials and Design Vol. 223 2022/09 Research paper (scientific journal)
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Highly efficient soldering of Sn-Ag-Cu solder joints using blue laser
Tatsumi, H., Kaneshita, S., Kida, Y., Sato, Y., Tsukamoto, M., Nishikawa, H.
Journal of Manufacturing Processes Vol. 82 p. 700-707 2022/08 Research paper (scientific journal)
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Solid-state bonding behavior between surface-nanostructured Cu and Au: a molecular dynamics simulation
Tatsumi, H., Kao, C.R., Nishikawa, H.
Scientific Reports Vol. 12 No. 1 2022/07 Research paper (scientific journal)
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Evaluation of Stiffness-Reduced Joints by Transient Liquid-Phase Sintering of Copper-Solder-Resin Composite for SiC Die-Attach Applications
Hiroaki Tatsumi, Adrian Lis, Hiroshi Yamaguchi, Yoshihiro Kashiba, Akio Hirose
IEEE Transactions on Components, Packaging and Manufacturing Technology Vol. 9 No. 10 p. 2111-2121 2019/10 Research paper (scientific journal)
Publisher: Institute of Electrical and Electronics Engineers ({IEEE})
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Deformation Behavior of Transient Liquid-Phase Sintered Cu-Solder-Resin Microstructure for Die-Attach
Hiroaki Tatsumi, Hiroshi Yamaguchi, Tomoki Matsuda, Tomokazu Sano, Yoshihiro Kashiba, Akio Hirose
Applied Sciences Vol. 9 No. 17 p. 3476-3476 2019/08/23 Research paper (scientific journal)
Publisher: {MDPI} {AG}
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Reliability and Temperature Resistance of Solder–Metallic Mesh Composite Joints
Lis, A., Tatsumi, H., Matsuda, T., Sano, T., Kashiba, Y., Hirose, A.
Journal of Electronic Materials Vol. 48 No. 6 p. 3699-3712 2019/06 Research paper (scientific journal)
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Evolution of Transient Liquid-Phase Sintered Cu–Sn Skeleton Microstructure During Thermal Aging
Hiroaki Tatsumi, Adrian Lis, Hiroshi Yamaguchi, Tomoki Matsuda, Tomokazu Sano, Yoshihiro Kashiba, Akio Hirose
Applied Sciences Vol. 9 No. 1 p. 157-157 2019/01/04 Research paper (scientific journal)
Publisher: {MDPI} {AG}
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Bonding through novel solder-metallic mesh composite design
Adrian Lis, Hiroaki Tatsumi, Tomoki Matsuda, Tomokazu Sano, Yoshihiro Kashiba, Akio Hirose
Materials & Design Vol. 160 p. 475-485 2018/12 Research paper (scientific journal)
Publisher: Elsevier BV
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Impact of metallurgical and mechanical properties of sintered silver joints on die-attach reliability of high-temperature power modules
Tatsumi, H., Kumada, S., Fukuda, A., Yamaguchi, H., Kashiba, Y.
Journal of Microelectronics and Electronic Packaging Vol. 13 No. 3 p. 121-127 2016 Research paper (scientific journal)
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Interfacial bonding behavior between silver nanoparticles and gold substrate using molecular dynamics simulation
Ogura, T., Nishimura, M., Tatsumi, H., Takahara, W., Hirose, A.
Materials Transactions Vol. 53 No. 12 p. 2085-2090 2012 Research paper (scientific journal)
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A novel metal-to-metal bonding process through in-situ formation of Ag nanoparticles using Ag2O microparticles
Akio Hirose, Hiroaki Tatsumi, Naoya Takeda, Yusuke Akada, Tomo Ogura, Eiichi Ide, Toshiaki Morita
Journal of Physics: Conference Series Vol. 165 2009 Research paper (international conference proceedings)
Publisher: Institute of Physics Publishing
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Interfacial bonding mechanism using silver metallo-organic nanoparticles to bulk metals and observation of sintering behavior
Akada, Y., Tatsumi, H., Yamaguchi, T., Hirose, A., Morita, T., Ide, E.
Materials Transactions Vol. 49 No. 7 p. 1537-1545 2008 Research paper (scientific journal)
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Orbital validation for tin whisker suppression by conformal coating
Shinichiro Ichimaru, Tsuyoshi Nakagawa, Norio Nemoto, Katsuaki Suganuma, Hiroaki Tatsumi, Hiroshi Nishikawa
Microelectronics Reliability Vol. 174 p. 115888-115888 2025/11/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Lead whisker growth characteristics on satellites in Earth orbit
Shinichiro Ichimaru, Tsuyoshi Nakagawa, Norio Nemoto, Katsuaki Suganuma, Hiroaki Tatsumi, Hiroshi Nishikawa
Materialia Vol. 43 p. 102470-102470 2025/09/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Effect of copper on interfacial reaction and microstructure of soldering on aluminum substrate
Jiahui Li, Yu-An Shen, Hiroaki Tatsumi, Hiren Kotadia, Runhua Gao, Hiroshi Nishikawa
Journal of Materials Research and Technology Vol. 37 p. 3533-3540 2025/07/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Regulating Sn Grain Orientations in Soldered Joints through CoSn3
Xinjie Wang, Hiroaki Tatsumi, Hiroshi Nishikawa
2025 International Conference on Electronics Packaging and iMAPS All Asia Conference (ICEP-IAAC) p. 25-26 2025/04/15 Research paper (international conference proceedings)
Publisher: IEEE
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Glass to Glass Joint by Low Temperature Soldering Using Localized Induction Heating Process
Chi Hsuan Lin, Hiroaki Tatsumi, Jenn Ming Song, Hiroshi Nishikawa
2025 International Conference on Electronics Packaging and iMAPS All Asia Conference (ICEP-IAAC) p. 27-28 2025/04/15 Research paper (international conference proceedings)
Publisher: IEEE
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Non-Destructive X-Ray Orientation Mapping of Die-Attach Solder for Thermal Cycling Test
Y. Hayashi, J. Kim, M. Yabashi, H. Tatsumi
2025 International Conference on Electronics Packaging and iMAPS All Asia Conference (ICEP-IAAC) p. 137-138 2025/04/15 Research paper (international conference proceedings)
Publisher: IEEE
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Predictive Validity for Sintered Die-Attach Performance Based on Cross-Sectional Morphology
Runhua Gao, Hiroaki Tatsumi, Takanori Kobatake, Minoru Ueshima, Hiroshi Nishikawa
2025 International Conference on Electronics Packaging and iMAPS All Asia Conference (ICEP-IAAC) p. 169-170 2025/04/15 Research paper (international conference proceedings)
Publisher: IEEE
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Sintered Cu-to-Cu Joints using Cu Dendritic Structure Formed by a Dynamic Hydrogen Bubble Template with Cetyltrimethylammonium Bromide
Ji-Hyun Kim, Hiroaki Tatsumi, Hiroshi Nishikawa
2025 International Conference on Electronics Packaging and iMAPS All Asia Conference (ICEP-IAAC) p. 197-198 2025/04/15 Research paper (international conference proceedings)
Publisher: IEEE
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Interfacial reaction and IMC growth kinetics at the Bi2Te3/Ag interface during isothermal aging
Seong-Woo Pak, Hiroaki Tatsumi, Jianhao Wang, Albert T. Wu, Hiroshi Nishikawa
Intermetallics Vol. 179 p. 108686-108686 2025/04/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Low-temperature soldering using Sn/Bi electrodeposited bilayer
Wei-Li Wang, Sheng-Jye Cherng, Yu-Ting Huang, Runhua Gao, Hiroaki Tatsumi, Hiroshi Nishikawa, Chih-Ming Chen
Materials Science in Semiconductor Processing Vol. 186 p. 109056-109056 2025/02/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Microstructure and Bonding Properties of Transient Liquid-Phase Bonding using Cu-SnAgCu Molded Sheets By High-Pressure Powder Compression
Ichizo Sakamoto, Doojin Jeong, Hiroaki Tatsumi, Hiroshi Nishikawa
Journal of Electronic Materials Vol. 54 No. 1 p. 773-783 2024/11/12 Research paper (scientific journal)
Publisher: Springer Science and Business Media LLC
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Study of the characteristics and growth of tin whiskers in orbit
Shinichiro Ichimaru, Tsuyoshi Nakagawa, Norio Nemoto, Katsuaki Suganuma, Hiroaki Tatsumi, Hiroshi Nishikawa
Microelectronics Reliability Vol. 162 p. 115523-115523 2024/11/01 Research paper (scientific journal)
Publisher: Elsevier BV
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Thermal decomposition temperature-dependent bonding performance of Ag nanostructures derived from metal–organic decomposition
Chuncheng Wang, Hiroaki Tatsumi, Hiroshi Nishikawa
Journal of Materials Science Vol. 59 No. 40 p. 19038-19056 2024/10/15 Research paper (scientific journal)
Publisher: Springer Science and Business Media LLC
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Substrate-Dependent Sintering Mechanism of Ag Nanostructures Derived from Ag-Based Complex
Chuncheng Wang, Hiroaki Tatsumi, Hiren Kotadia, Hiroshi Nishikawa
ACS Applied Electronic Materials Vol. 6 No. 10 p. 7360-7371 2024/09/27 Research paper (scientific journal)
Publisher: American Chemical Society (ACS)
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Creep Behavior of Low-Temperature Sn-In Solder Using Nanoindentation Test
Shunya Nitta, Hiroaki Tatsumi, Hiroshi Nishikawa
2024 International 3D Systems Integration Conference (3DIC) p. 1-3 2024/09/25 Research paper (international conference proceedings)
Publisher: IEEE
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Study on Thermal Cycling Reliability of Epoxy-Enhanced SAC305 Solder Joint
Peng Zhang, Songbai Xue, Lu Liu, Jianhao Wang, Hiroaki Tatsumi, Hiroshi Nishikawa
Polymers Vol. 16 No. 18 p. 2597-2597 2024/09/14 Research paper (scientific journal)
Publisher: MDPI AG
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Evaluation of Fatigue Properties of Metal/CFRTP Joints using Cu-Ni Alloy Electroplating Film
Tatsuya Kobayashi, Hiroaki Tatsumi, Kohei Yamazaki, Ryoya Okashita, Ikuo Shohji
Journal of Japan Institute of Copper Vol. 63 No. 1 p. 176-179 2024/07 Research paper (scientific journal)
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Ag Sintered Joints on ENIG Cu Substrates by an Ag-Based Complex
Chuncheng Wang, Hiroaki Tatsumi, Hiroshi Nishikawa
2024 International Conference on Electronics Packaging (ICEP) p. 95-96 2024/04/17 Research paper (international conference proceedings)
Publisher: IEEE
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Low Thermal Resistance Joint Using Lotus-type Cu/Solder Composite
Hiroaki Tatsumi, Hiroshi Isono, Kana Hirase, Takuya Ide, Hiroshi Nishikawa
2024 International Conference on Electronics Packaging (ICEP) p. 51-52 2024/04/17 Research paper (international conference proceedings)
Publisher: IEEE
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Joint Strength of Transient Liquid Phase Bonding Using Cu-SAC Molded Sheet
Ichizo Sakamoto, Doojin Jeong, Hiroaki Tatsumi, Hiroshi Nishikawa
2024 International Conference on Electronics Packaging (ICEP) p. 41-42 2024/04/17 Research paper (international conference proceedings)
Publisher: IEEE
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A Comparative Numerical Study of Thermo-Mechanical Behavior among Various IMC Joints under Thermal Cycling Condition
Xunda LIU, Hiroaki TATSUMI, Hiroshi NISHIKAWA
Journal of Smart Processing Vol. 13 No. 2 p. 83-89 2024/03/10 Research paper (scientific journal)
Publisher: Sumart Processing Society for Minerals, Environment and Energy
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Interfacial reactions between In and Ag during solid liquid interdiffusion process
Xunda Liu, Fupeng Huo, Jianhao Wang, Hiroaki Tatsumi, Zhi Jin, Zhong Chen, Hiroshi Nishikawa
Surfaces and Interfaces 2024/02 Research paper (scientific journal)
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Effect of Bi content on the microstructure and mechanical properties of Sn-Bi-Zn-In alloy
Hiroki Nakawaki, Hiroaki Tatsumi, Shunya Nitta, Chih-han Yang, Shih-kang Lin, Hiroshi Nishikawa
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY Vol. 41 No. 4 2023/12 Research paper (scientific journal)
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Thermomechanical Properties of Zeta (Ag3In) Phase
Xunda Liu, Hiroaki Tatsumi, Zhi Jin, Zhong Chen, Hiroshi Nishikawa
Materials Vol. 16 2023/11 Research paper (scientific journal)
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Fabrication and thermo-mechanical properties of Ag9In4 intermetallic compound
Xunda Liu, Hiroaki Tatsumi, Zhi Jin, Zhong Chen, Hiroshi Nishikawa
Intermetallics Vol. 162 2023/11 Research paper (scientific journal)
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Influence of Isothermal Aging on Microstructure and Shear Property of Novel Epoxy Composite SAC305 Solder Joints
Peng Zhang, Songbai Xue, Lu Liu, Jianhao Wang, Hiroaki Tatsumi, Hiroshi Nishikawa
Polymers 2023/10/20 Research paper (scientific journal)
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Reliability-enhanced microscale Ag sintered joint doped with AlN nanoparticles
Jianhao Wang, Shogo Yodo, Hiroaki Tatsumi, Hiroshi Nishikawa
Materials Letters Vol. 349 2023/10 Research paper (scientific journal)
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Comparative Study of Sn-based Solder Wettability on Aluminum Substrate
Jiahui Li, Hiroaki Tatsumi, Hiroshi Nishikawa
Quarterly Journal of the Japan Welding Society Vol. 41 2023/07 Research paper (scientific journal)
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Thermal conductivity and reliability reinforcement for sintered microscale Ag particle with AlN nanoparticles additive
Jianhao Wang, Shogo Yodo, Hiroaki Tatsumi, Hiroshi Nishikawa
Materials Characterization Vol. 203 2023/07 Research paper (scientific journal)
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The electromigration study of thin-film structured Sn3.5Ag and Ag using continuous observation and reliability enhancement approach
Zhi Jin, Fupeng Huo, Duy Le Han, Xunda Liu, Hiroaki Tatsumi, Y.C. Chan, Hiroshi Nishikawa
Thin Solid Films Vol. 774 No. 7 2023/06 Research paper (scientific journal)
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Failure Analysis of Joints Bonded by Ag-In Transient Liquid Phase Process during Shear Test
Xunda Liu, Hiroaki Tatsumi, Zhi Jin, Hiroshi Nishikawa
Proc. of 2023 International Conference on Electronics Packaging (ICEP2023) 2023/04 Research paper (international conference proceedings)
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Significant Consumption of Ni-P Layer in Ni-P/Sn-0.7Cu Solder Joints during Thermomigration
Satoshi Oya, Hiroaki Tatsumi, Hiroshi Nishikawa
Proc. of 2023 International Conference on Electronics Packaging (ICEP2023) 2023/04 Research paper (international conference proceedings)
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Microstructure and Property of Ag Sintered Joint Doping with AlN Nanoparticles
Jianhao Wang, Shogo Yodo, Hiroaki Tatsumi, Hiroshi Nishikawa
Proc. of 2023 International Conference on Electronics Packaging (ICEP2023) 2023/04 Research paper (international conference proceedings)
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Interfacial Intermetallic Compounds of Bi2Te3/Cu Joint using SAC305 Solder and Nano-Ag Paste
Seongwoo Pak, Hiroaki Tatsumi, Jianhao Wang, Hiroshi Nishikawa
Proc. of 2023 International Conference on Electronics Packaging (ICEP2023) 2023/04 Research paper (international conference proceedings)
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The Influence of Bi Content on Joint Properties using Sn-Bi-Zn-In Alloy
Hiroki Nakawaki, Hiroaki Tatsumi, Chih-han Yang, Shih-kang Lin, Hiroshi Nishikawa
Proc. of 2023 International Conference on Electronics Packaging (ICEP2023) 2023/04 Research paper (international conference proceedings)
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Molecular Dynamics Simulation of Cu-Cu Solid-State Bonding under Various Bonding Parameters
Hiroaki Tatsumi, C.R. Kao, Hiroshi Nishikawa
Proc. of 2023 International Conference on Electronics Packaging (ICEP2023) 2023/04 Research paper (international conference proceedings)
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Mechanical properties of transient liquid phase bonded joints by using Ag-In sandwich structure
Xunda Liu, Zhi Jin, Hiroaki Tatsumi, Hiroshi Nishikawa
Proc. of 2022 IEEE 24th Electronics Packaging Technology Conference (EPTC) p. 71-75 2023/01 Research paper (international conference proceedings)
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Effect of isothermal aging on properties of In-48Sn and In-Sn-8Cu alloys
Duy Le Han, Hiroaki Tatsumi, Fupeng Huo, Hiroshi Nishikawa
Proc. of 2022 IEEE 72nd Electronic Components and Technology Conference (ECTC) p. 2148-2152 2022/07 Research paper (international conference proceedings)
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Pressureless sinter joining of bare Cu substrates under forming gas atmosphere by surface-oxidized submicron Cu particles
Daiki Yamagiwa, Tomoki Matsuda, Hideki Furusawa, Kenji Sato, Hiroaki Tatsumi, Tomokazu Sano, Yoshihiro Kashiba, Akio Hirose
Journal of Materials Science: Materials in Electronics 2021/06/29 Research paper (scientific journal)
Publisher: Springer Science and Business Media LLC
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Novel solder-mesh interconnection design for power module applications
Adrian Lis, Hiroaki Tatsumi, Tomoki Matsuda, Tomokazu Sano, Yoshihiro Kashiba, Akio Hirose
Proceedings of the International Conference and Exhibition on High Temperature Electronics (HiTEC) Vol. 2018 No. HiTEC p. 000057-000062 2018/05 Research paper (international conference proceedings)
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Transient Liquid Phase Sintering Using Copper-Solder-Resin Composite for High-Temperature Power Modules
Tatsumi H, Lis A, Monodane T, Yamaguchi H, Kashiba Y, Hirose A
Proceedings - Electronic Components and Technology Conference Vol. 2018-May p. 564-567 2018 Research paper (international conference proceedings)
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Impact of Metallurgical and Mechanical Properties of Sintered Silver Nanoparticles on Die-attach Reliability of High-temperature Power Modules
International Symposium on Microelectronics 2015
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Low Temperature Sintering Bonding Process Using Ag Nanoparticles Derived from Ag2O for Packaging of High-temperature Electronics
Akio Hirose, Naoya Takeda, Yosuke Konaka, Hiroaki Tatsumi, Yusuke Akada, Tomo Ogura, Eiichi Ide, Toshiaki Morita
THERMEC 2011, PTS 1-4 Vol. 706-709 p. 2962-+ 2012 Research paper (international conference proceedings)
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Evaluation of Interfacial Bonding Utilizing Ag2O-Derived Silver Nanoparticles Using TEM Observation and Molecular Dynamics Simulation
Tomo Ogura, Masumi Nishimura, Hiroaki Tatsumi, Naoya Takeda, Wataru Takahara, Akio Hirose
The Open Surface Science Journal Vol. 3 No. 1 p. 55-59 2010/01/01 Research paper (scientific journal)
Publisher: Bentham Science Publishers Ltd.
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Sintering Mechanism of Composite Ag Nanoparticles and its Application to Bonding Process-Effects of Ag(2)CO(3) Contents on Bondability to Cu-
Hiroaki Tatsumi, Yusuke Akada, Takuto Yamaguchi, Akio Hirose
ADVANCED MATERIALS AND PROCESSING Vol. 26-28 p. 499-+ 2007 Research paper (international conference proceedings)