アクセス トップページ
早稲田大学ロゴ WASEDA UNIVERSITY          
Center for Ultra-Low-Loss Power Diamond Transistor
Japanese
Home Outline Vision Tools Supports Application Links
 

画像場所
Latest News
2013/07/26
Prof. Osaka's research was aired with Brazilian broadcast station, Record TV.
2012/03/09
We made presentations at the “LCnet Briefing Session of Research Results”. (Poster)
2012/02/17
We participated the poster session of the “nano tech 2012 - International Nanotechnology Exhibition & Conference” .
・2012/01/28
ALCA visited our research sites.
・2012/01/25
'Waseda Diamond International Workshop' was held at the Waseda University.   Click here for the agenda.
・2011/12/09
The research group of Prof. KAWARADA made presentations at the 25th Diamond Symposium of Japan New Diamond Forum (December 7 – 9).   Click here for the agenda.
・2011/11/30
'Low-Carbon Research Network Progress Report Meeting' will be held on March 9, 2012.
・2011/9/4 – 9/8
We made presentations at Diamond 2011.
・2011/09
Professor Kawarada and Professor Hiraiwa visited ‘Walter Schottky Institut (WSI) of Technical University of Munich (TUM)’ and ‘Fraunhofer-Institut fur Angewandte Festkorperphysik (IAF)’ for meetings and facility tours.
・2011/08/29〜9/2
We made presentations at the 72nd Fall Meeting of JSAP (The Japan Society of Applied Physics).
・2011/08/22
'Research and Development of Ultralow-loss Power Transistors' is published on the Electronic Journal, August 2011 issue.
・2011/07/26
Announcement: we have started the shared-use of 'Low-Carbon Research Network' facilities.
・2011/06/02〜06/03
We have participated in the Open Laboratory of the University of Tokyo and NIMS.
・2011/05/16〜05/20
「International Conference on New Diamond and Nano Carbons 2011」was held in Matsue at Kunibiki Messe.
http://www.ndnc2011.org/
・2011/03
Occurred on March 11, "the Great East Japan Earthquake" , We sympathy to the suffering of everyone. Due to this earthquake to stop temporarily the operation of all equipment, work carried out various inspections. After checking all equipment repairs, and it is normally running.
・2011/02/04
Conference / Open Facilities guidance
The first meeting
・2010/12/1
Adapted at the Organization for University Research Initiatives, Waseda University
・2011/07/22
MEXT Kick-Off Meeting
・2010/06/14
Adapted as MEXT satellite center
 
Leader's Comment
グループリーダー写真
Center for ultra-low-loss power transistor of Waseda University is creating high-voltage and low-resistance switch with high insulation and conductivity, which are obtained by uniform electric-field distribution and high current-density on Field Effect Transistor made from semiconducting diamond. We also construct facilities which allow us to process various advanced materials including diamond that compose the transistor and its peripherals. By these activities we feature our satellite to create various transistor structures for high power, high frequency with high precision; and to evaluate details of the transistor performance.
For minimizing loss of power devices, we need to satisfy two trade-off requirements: high voltage resistance at the off-condition and high conductivity at the on-condition. Diamond is a semiconductor with the highest break-down electric field. On the other hand, it is a low resistance material that can indicate superconductivity. In this project we take advantage of such characteristics of diamond to accelerate applied technologies for Field Effect Transistor (FET).
Group leader Hiroshi Kawarada
※photo by:Shiozawa Hideki