Details of the Researcher

PHOTO

Yoshikazu Takahashi
Section
Center for Innovative Integrated Electronic Systems
Job title
Professor
Degree
  • 博士(工学)(山梨大学)

Professional Memberships 3

  • 日本デザイン学会

  • エレクトロニクス実装学会

  • 電気学会

Papers 8

  1. Influence of Antimony on Reliability of Solder Joints Using Sn-Sb Binary Alloy for Power Semiconductor Modules

    Morozumi Akira, Hokazono Hiroaki, Nishimura Yoshitaka, Mochizuki Eiji, Takahashi Yoshikazu

    Transactions of The Japan Institute of Electronics Packaging 8 (1) 8-17 2015

    Publisher: The Japan Institute of Electronics Packaging

    DOI: 10.5104/jiepeng.8.8  

    ISSN: 1883-3365

    More details Close

    Power semiconductor devices for electric power conversion must be able to operate at high temperatures and with high levels of reliability. Therefore, heat resistance and long fatigue lifetime are necessary for the solder joints of these devices. In this paper, we discuss the mechanical properties and the thermal cycling lifetime evaluation of a Sn-Sb binary alloy whose melting temperature can be controlled relatively, and which has excellent high temperature properties. Tensile tests are conducted to determine how the reliability of solder joints using the Sn-Sb alloy is affected by the amount of Sb. We used a Sn-13 wt.% Sb binary alloy as the joint material of a power semiconductor device and investigated the thermal cycling lifetime of the solder joint. It was clarified that the tensile strength of the Sn-Sb binary alloy is proportional to the Sb content and the thermal cycling lifetime increases with increasing tensile strength of the solder. The precipitation strengthening of a SbSn compound leads to improvement of the tensile strength and thermal cycling lifetime.

  2. Reverse-blocking IGBTs with V-groove isolation layer for three-level power converters

    Haruo Nakazawa, David Hongfei Lu, Masaaki Ogino, Tohru Shirakawa, Yoshikazu Takahashi

    IEEJ Journal of Industry Applications 2 (6) 323-328 2013

    DOI: 10.1541/ieejjia.2.323  

    ISSN: 2187-1094

    eISSN: 2187-1108

  3. Crystalline Defects in Silicon Wafer Caused by Prolonged High-Temperature Annealing in Nitrogen Atmosphere

    Haruo Nakazawa, Masaaki Ogino, Hideaki Teranishi, Yoshikazu Takahashi, Hitoshi Habuka

    Advanced Materials Research 699 445-449 2013

    DOI: 10.4028/www.scientific.net/AMR.699.445  

    ISSN: 1022-6680

  4. Toughening mechanism and frontal process zone size of ceramics

    Hideo Awaji, Yoshitaka Nishimura, Seong Min Choi, Yoshikazu Takahashi, Tomoaki Goto, Shinobu Hashimoto

    Journal of the Ceramic Society of Japan 117 (1365) 623-629 2009/05

    DOI: 10.2109/jcersj2.117.623  

    ISSN: 1882-0743

    eISSN: 1348-6535

  5. 2.5 kV-1000 a Power Pack IGBT (high power flat-packaged NPT Type RC-IGBT)

    Yoshikazu Takahashi, Koh Yoshikawa, Masayuki Soutome, Takeshi Fujii, Humiaki Kirihata, Yasukazu Seki

    IEEE Transactions on Electron Devices 46 (1) 245-250 1999

    DOI: 10.1109/16.737465  

    ISSN: 0018-9383

  6. 2.5 kV-100 a flat-packaged IGBT (micro-stack IGBT)

    Yoshikazu Takahashi, Takeharu Koga, Humiaki Kirihata, Yasukazu Seki

    IEEE Transactions on Electron Devices 43 (12) 2276-2282 1996

    DOI: 10.1109/16.544421  

    ISSN: 0018-9383

  7. A 115-mm Ø 6-kV 2500-A Light-Triggered Thyristor

    Masahide Watanabe, Yoshikazu Takahashi, Katsuhiro Endo, Hideaki Kakigi, Osamu Hashimoto

    IEEE Transactions on Electron Devices 37 (1) 285-289 1990/01

    DOI: 10.1109/16.43827  

    ISSN: 0018-9383

    eISSN: 1557-9646

  8. 2.5-kV 2000-A Monolithic Reverse Conducting Gate Turn-Off Thyristor

    Osamu Hashimoto, Yoshikazu Takahashi, Masahide Watanabe, Osamu Yamada, Tatsuhiko Fujihira

    IEEE Transactions on Industry Applications 26 (5) 835-839 1990

    DOI: 10.1109/28.60057  

    ISSN: 0093-9994

    eISSN: 1939-9367

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Misc. 44

  1. Power Electronics Technology that Contributes to a Carbon-neutral Society

    高橋良和, 加藤修治, 遠藤哲郎, 高橋良和, 加藤修治, 遠藤哲郎

    まぐね 17 (3) 2022

    ISSN: 1880-7208

  2. Behavior of Star-Light Converters at AC Grid Voltage-drop which overcome week points of MMCs for BTBs and its potential for other applications

    加藤修治, 高橋良和, 遠藤哲郎, 遠藤哲郎

    電気学会電力・エネルギー部門大会論文集(CD-ROM) 2018 2018

  3. Direct bonding of SiC by the suface activated bonding method

    Tadatomo Suga, Fengwen Mu, Masahisa Fujino, Yoshikazu Takahashi, Haruo Nakazawa, Kenichi Iguchi

    2014 International Conference on Electronics Packaging, ICEP 2014 341-344 2014

    DOI: 10.1109/ICEP.2014.6826707  

  4. Next-gen IGBT module structure for hybrid vehicle with high cooling performance and high temperature operation

    Hiromichi Gohara, Yoshitaka Nishimura, Akira Morozumi, Peter Dietrich, Eiji Mochi Zuki, Yoshikazu Takahashi

    PCIM Europe Conference Proceedings 1187-1194 2014

    ISSN: 2191-3358

    eISSN: 2191-3358

  5. SiC wafer bonding by modified suface activated bonding method

    Fengwen Mu, Tadatomo Suga, Masahisa Fujino, Yoshikazu Takahashi, Haruo Nakazawa, Kenichi Iguchi

    Proceedings of 2014 4th IEEE International Workshop on Low Temperature Bonding for 3D Integration, LTB-3D 2014 55 2014

    DOI: 10.1109/LTB-3D.2014.6886194  

  6. Improving reliability of IGBT surface electrode for 200 °c operation

    Tomohiro Nishimura, Yoshinari Ikeda, Hiroaki Hokazono, Eiji Mochizuki, Yoshikazu Takahashi

    2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014 2870-2873 2014

    DOI: 10.1109/IPEC.2014.6870088  

  7. Precipitates caused by prolonged high-temperature annealing in floating zone silicon wafer grown from Czochralski single-crystal rod

    Haruo Nakazawa, Masaaki Ogino, Hideaki Teranishi, Yoshikazu Takahashi, Hitoshi Habuka

    Materials Science in Semiconductor Processing 16 (3) 923-927 2013/06

    DOI: 10.1016/j.mssp.2013.01.020  

    ISSN: 1369-8001

  8. Direct liquid cooling module with high reliability solder joining technology for automotive applications

    Akira Morozumi, Hiroaki Hokazono, Yoshitaka Nishimura, Yoshinari Ikeda, Yoichi Nabetani, Yoshikazu Takahashi

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 109-112 2013

    DOI: 10.1109/ISPSD.2013.6694408  

    ISSN: 1063-6854

  9. Full SiC power module with advanced structure and its solar inverter application

    Yuichiro Hinata, Masafumi Horio, Yoshinari Ikeda, Ryuji Yamada, Yoshikazu Takahashi

    Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC 604-607 2013

    DOI: 10.1109/APEC.2013.6520272  

    ISSN: 1048-2334

  10. Comparison of SAB methods for room temperature bonding of Si wafers

    Keigo Oshikawa, Chenxi Wang, Masahisa Fujino, Tadatomo Suga, Kenichi Iguchi, Haruo Nakawaza, Yoshikazu Takahashi

    Proceedings of 2012 3rd IEEE International Workshop on Low Temperature Bonding for 3D Integration, LTB-3D 2012 113 2012

    DOI: 10.1109/LTB-3D.2012.6238066  

  11. 1700V reverse-blocking IGBTs with V-groove isolation layer for multi-level power converters

    David H. Lu, Masaaki Ogino, Tohru Shirakawa, Haruo Nakazawa, Yoshikazu Takahashi

    PCIM Europe Conference Proceedings 815-821 2012

    ISSN: 2191-3358

    eISSN: 2191-3358

  12. Ultra compact and high reliable SiC MOSFET power module with 200°C operating capability

    Masafumi Horio, Yuji Iizuka, Yoshinari Ikeda, Eiji Mochizuki, Yoshikazu Takahashi

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 81-84 2012

    DOI: 10.1109/ISPSD.2012.6229028  

    ISSN: 1063-6854

  13. Latest power devices for photovoltaic inverters

    T. Fujihira, A. Otsuki, Y. Takahashi, T. Ide, M. Kawano, N. Eguchi

    IEEE International Symposium on Industrial Electronics 1791-1794 2012

    Publisher: IEEE

    DOI: 10.1109/ISIE.2012.6237363  

  14. Hybrid isolation process with deep diffusion and V-groove for reverse blocking IGBTs

    Haruo Nakazawa, Masaaki Ogino, Hiroki Wakimoto, Tsunehiro Nakajima, Yoshikazu Takahashi, David Hongfei Lu

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 116-119 2011

    DOI: 10.1109/ISPSD.2011.5890804  

    ISSN: 1063-6854

  15. Nanocomposite epoxy resin for SiC module

    Kenji Okamoto, Yuji Takematsu, Miyako Hitomi, Yoshinari Ikeda, Yoshikazu Takahashi

    Proceedings - 2011 IMAPS International Conference on High Temperature Electronics Network, HiTEN 2011 196-200 2011

  16. Reduction of conducted electromagnetic interference in SMPS using programmable gate driving strength

    A. Shorten, A. A. Fomani, W. T. Ng, H. Nishio, Y. Takahashi

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 364-367 2011

    DOI: 10.1109/ISPSD.2011.5890866  

    ISSN: 1063-6854

  17. Ultra compact, low thermal impedance and high reliability module structure with SiC Schottky barrier diodes

    Yoshinari Ikeda, Norihiro Nashida, Masafumi Horio, Hiromu Takubo, Yoshikazu Takahashi

    Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC 1298-1300 2011

    DOI: 10.1109/APEC.2011.5744760  

    ISSN: 1048-2334

  18. Investigation on wirebond-less power module structure with high-density packaging and high reliability

    Yoshinari Ikeda, Yuji Iizuka, Yuichiro Hinata, Masafumi Horio, Motohito Hori, Yoshikazu Takahashi

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 272-275 2011

    DOI: 10.1109/ISPSD.2011.5890843  

    ISSN: 1063-6854

  19. New IGBT modules for advanced neutral-point-clamped 3-level power converters

    K. Komatsu, M. Yatsu, S. Miyashita, S. Okita, H. Nakazawa, S. Igarashi, Y. Takahashi, Y. Okuma, Y. Seki, T. Fujihira

    2010 International Power Electronics Conference - ECCE Asia -, IPEC 2010 523-527 2010

    DOI: 10.1109/IPEC.2010.5543275  

  20. A study of the bonding-wire reliability on the chip surface electrode in IGBT

    Yoshinari Ikeda, Hiroaki Hokazono, Shigeru Sakai, Tomohiro Nishimura, Yoshikazu Takahashi

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 289-292 2010

    ISSN: 1063-6854

  21. Macro-trend and a future expectation of innovations in power electronics and power devices

    H. Shigekane, T. Fujihira, K. Sasagawa, Y. Seki, Y. Takahashi, A. Takai

    2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09 35-39 2009

    DOI: 10.1109/IPEMC.2009.5292052  

  22. A study on the reliability of the chip surface solder joint

    Yoshinari Ikeda, Yuji Iizuka, Tatsuhiko Asai, Tomoaki Goto, Yoshikazu Takahashi

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 189-192 2008

    DOI: 10.1109/ISPSD.2008.4538930  

    ISSN: 1063-6854

  23. Investigations of all lead free IGBT module structure with low thermal resistance and high reliability

    Y. Nishimura, A. Morozumi, E. Mochizuki, Y. Takahashi

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 2006 2006

    ISSN: 1063-6854

  24. All lead free IGBT module with excellent reliability

    Y. Nishimura, K. Oonishi, A. Morozumi, E. Mochizuki, Y. Takahashi

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 79-82 2005

    ISSN: 1063-6854

  25. 1792 channel DC tester for FCBGA package evaluation

    TAKAHASHI Yoshikazu

    Technical report of IEICE. ICD 103 (647) 69-71 2004/01/29

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    The 1792 channel DC tester is developed for the BGA(Ball Grid Array) packages whose pins are over l000. This tester has capability of 4 point measurement for the wire bonding and the solder ball degradation and open/short test for the high IO packages. The tester is expandable to 2880 channel

  26. Comb-actuator resonant measurement method using the 2nd harmonics of the GND current

    TAKAHASHI Yoshikazu

    2000 (11) 109-112 2000/12/19

  27. Development of high power press-pack IGBT and its applications

    Uchida, Yoshiyuki, Seki, Yasukazu, Seki, Yasukazu, Takahashi, Yoshikazu, Takahashi, Yoshikazu, Ichijoh, Masami, Ichijoh, Masami

    2000 22nd International Conference on Microelectronics, MIEL 2000 - Proceedings 1 2000

  28. Development of high power press-pack IGBT and its applications

    Yoshiyuki Uchida, Yasukazu Seki, Yoshikazu Takahashi, Masami Ichijoh

    2000 22nd International Conference on Microelectronics, MIEL 2000 - Proceedings 1 125-129 2000

    DOI: 10.1109/ICMEL.2000.840538  

  29. 4.5kV-2000A Power Pack IGBT (ultra high power flat-packaged PT type RC-IGBT)

    T. Fujii, K. Yoshikawa, T. Koga, A. Nishiura, Y. Takahashi, H. Kakiki, M. Ichijyou, Y. Seki

    IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD) 33-36 2000

  30. Ruggedness and reliability of the 2.5 kV-1.8 kA power pack IGBT with a novel multi-collector structure

    Takeharu Koga, Kazuaki Yamazaki, Hiroki Wakimoto, Yoshikazu Takahashi, Humiaki Kirihata, Yasukazu Seki

    IEEE International Symposium on Power Semiconductor Devices & ICs (ISPSD) 437-440 1998

  31. Study on voltage oscillation phenomenon in high power P-i-N diode

    Michio Nemoto, Yoshikazu Takahashi, Takeshi Fujii, Noriyuki Iwamuro, Yasukazu Seki

    IEEE International Symposium on Power Semiconductor Devices & ICs (ISPSD) 305-308 1998

  32. Advanced power pack IGBT: 2.5 kV/1.8 kA RC-IGBT with highly reliable and ruggedness flat package

    Yasukazu Seki, Yoshikazu Takahashi, Takeharu Koga, Humiaki Kirihata

    IEE Conference Publication (456) 258-262 1998

    DOI: 10.1049/cp:19980534  

    ISSN: 0537-9989

  33. Investigation of flat-pack IGBT reliability

    Humiaki Kirihata, Yoshikazu Takahashi, Hiroki Wakimoto, Fumisato Niino

    Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) 2 1016-1021 1998

    ISSN: 0197-2618

  34. Ultra high-power 2.5 kV-1800 A Power Pack IGBT

    Yoshikazu Takahashi, Koh Yoshikawa, Takeharu Koga, Masayuki Soutome, Tetsumi Takano, Humiaki Kirihata, Yasukazu Seki

    IEEE International Symposium on Power Semiconductor Devices & ICs (ISPSD) 233-236 1997

  35. 2.5 kV-1000 A Power Pack IGBT (High power flat-packaged RC-IGBT)

    Yoshikazu Takahashi, Koh Yoshikawa, Masayuki Soutome, Takeshi Fujii, Masami Ichijyou, Yasukazu Seki

    IEEE International Symposium on Power Semiconductor Devices & ICs (ISPSD) 299-302 1996

  36. Experimental investigations of 2.5 kV-100 A PT type and NPT type IGBTs

    Yoshikazu Takahashi, Koh Yoshikawa, Takeharu Koga, Masayuki Soutome, Yasukazu Seki

    IEEE International Symposium on Power Semiconductor Devices & ICs (ISPSD) 70-74 1995

  37. 2.5kV 100A μ-stack IGBT

    Yoshikazu Takahashi, Takeharu Koga, Humiaki Kirihata, Yasukazu Seki

    IEEE International Symposium on Power Semiconductor Devices & ICs 25-30 1994

  38. Development of a High-Current Superconductor

    Takahashi Yoshikazu

    Journal of plasma and fusion research 69 (6) p610-614 1993/06

    Publisher: プラズマ・核融合学会

    ISSN: 0918-7928

    More details Close

    A high-current superconductor is indispensable to large coils for the fusion machine. The high-current superconductor can be developed by using advanced techniques. Japan Atomic Energy Research Institute (JAERI) has developed the Demo Poloidal Coils (DPC) which has a nominal current of 30-kA and an inner diameter of 1m. During the charging test of the coils, an instability was observed in the superconductor. This is the most serious difficulty in which we met until now. Many verification tests were carried out step by step to solve this technical problem, for about three years. We have finally solved the problem and developed improved conductors. The improved conductor was tested and good results were obtained. Through this development, we could obtain the confidence that an other new technical problem can be solved by using the same method.

  39. Formation of high quality epitaxial layer for an improved GTO

    M. Watanabe, Y. Takahashi, O. Yamada, S. Tagami, H. Kirihata

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs 1992-May 98-103 1992

    DOI: 10.1109/ISPSD.1992.991244  

    ISSN: 1063-6854

  40. High frequency reverse conducting GTO thyristor

    O. Yamada, M. Watanabe, H. Kakigi, T. Koga, Y. Takahashi, H. Kirihata

    256-261 1990

  41. Gate drive circuits for high voltage, large current GTO-thyristors connected in series

    Hideo Saotome, Yoshikazu Takahashi

    PESC Record - IEEE Annual Power Electronics Specialists Conference 2 763-768 1990

    ISSN: 0275-9306

  42. 4.5 kV 3000 a high power reverse conducting gate turn-off thyristor.

    Osamu Hashimoto, Yoshikazu Takahashi, Humiaki Kirihata, Masahide Watanabe, Osamu Yamada

    PESC Record - IEEE Annual Power Electronics Specialists Conference 915-921 1988

    ISSN: 0275-9306

  43. 115 mm φ 6 kV 2500 A light triggered thyristor.

    Osamu Hashimoto, Masahide Watanabe, Katsuhiro Endo, Yoshikazu Takahashi, Hideaki Kakigi

    PESC Record - IEEE Annual Power Electronics Specialists Conference 928-933 1988

    ISSN: 0275-9306

  44. 2. 5 KV-2000 A MONOLITHIC REVERSE CONDUCTING GATE TURN-OFF THYRISTOR.

    Osamu Hashimoto, Yoshikazu Takahashi, Masahide Watanabe, Osamu Yamada, Tatsuhiko Fujihira

    Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) 388-392 1986

    ISSN: 0197-2618

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Books and Other Publications 1

  1. 「エナジーデバイス」の信頼性入門 : 二次電池、パワー半導体、太陽電池の特性改善と信頼性試験

    高橋, 邦明, 鳶島, 真一, 高橋, 良和, 土井, 卓也

    日刊工業新聞社 2012/11

    ISBN: 9784526069741

Industrial Property Rights 2

  1. 半導体装置用ユニットおよび半導体装置

    山田 教文 稲葉 哲也 池田 良成 柳川 克彦 高橋 良和

    Property Type: Patent

  2. 半導体装置及び半導体装置の製造方法

    奥村 勝弥 高橋 良和 池田 良成

    Property Type: Patent