田中秀治研究室 ~Student Page~

初心者ゼミ、オープンキャンパスについて

学部4年の大柴彩です。
今回は、初心者ゼミについてと、7月27日28日に行われたオープンキャンパスについてです。

初心者ゼミは、学部4年生がMEMSプロセスの基本について勉強するために5月ごろから開かれました。
今回勉強したのは、主にフォトリソグラフィー・エッチング・ダイシング・パッケージング技術についてです。上級生の方からMEMSプロセスに用いる装置の使い方や、プロセスの原理についてまでも詳しく教えて頂きました。装置やプロセスの原理は複雑ですが、これらを知ることで、どうしてこの実験をする必要があるのかということも理解することができます。
私が4年生になり、先生方のお話を聞いて卒業研究のテーマを決める際にも出てきたこれらの単語ですが、その時には何の話なのか分からず、卒業できるかどうか心配になりました。しかし、この初心者ゼミの上級生の方からの丁寧な説明を通して、少し理解が深まりました。

また、初心者ゼミでは座学の他にも実際に装置を用いて、オープンキャンパスで配布するお土産も作成しました。デザインは一昨年、去年に引き続き同じものを使いました。
上級生の指導の下、今までに見たことがない様々な装置を使い一つの物を作る、というのはとても楽しかったです。

そして、7月27日28日に行われたオープンキャンパスでは、研究室に所属する学部4年生を含む学生が、見に来てくださった高校生や保護者の方、研究室選択が間近の学部2年生に対して、どういった研究をしているのかを説明しました。

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研究室での研究が始まったばかりの私にとって、研究室全般についての説明は困難でしたが、自分自身の研究についてや初心者ゼミで勉強した内容についてを中心にお話ししました。どんなことを聞かれても的確に答えていた上級生はさすがでした。
2日間を通して70人以上の方々が見に来てくださり、初心者ゼミで作成したお土産用デバイスもお持ち帰りして頂きました。わざわざ遠方からオープンキャンパスに来てくださった高校生もおり、高校生活についてや受験勉強についてなどの会話もとても楽しかったです。

研究室の説明を聞きに来てくださった皆さま、本当にありがとうございました。

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江刺正喜先生のIEEE Jun-ichi Nishizawa Medal受賞祝賀会

2016年8月2日,約150名のお客様をお迎えして,江刺正喜先生のIEEE Jun-ichi Nishizawa Medal受賞祝賀会を仙台国際ホテルで開催しました。このメダルは,本学元総長の西澤潤一先生の御業績を称えて2002年に創設されました。今回の江刺先生の御受賞は,MEMSのパイオニアとしての基礎研究から実用化に至る数々の世界的業績を称えるもので,2015年のIEEE Andrew S. Grove Awardの御受賞に続くものです。

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祝賀会には西澤潤一先生にもお越し頂き,乾杯の挨拶をして頂きました。田中(秀)研究室にある自作の装置群はもちろん,装置でも何でも手作りする文化は,西澤先生の研究室に源流を発し,江刺研究室を経て我々に引き継がれています。

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祝賀会の中盤で,当研究室准教授の室山先生から江刺先生に記念品が贈呈されました。この記念品は室山先生とともに当研究室助教の塚本先生と秘書の相原さんが選んだもので,ニキシー管(数字を表示する冷陰極放電管)に時間が表示される時計です。時刻合わせはGPSモジュールによって行われますので,新旧技術が一体となった珍品ですね。

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ニキシー管時計の両側には,当研究室修士2年生の鈴木孝典さんが制作したプレートが付いています。1つには記念品贈呈に賛同してくれた人の名前が,もう1つにはこれがIEEE Jun-ichi Nishizawa Medal受賞を記念したものであることが表示されています。このプレートは,ガラスにCr/Auをスパッタ成膜し,それをエッチングして作ってあります。田中(秀)研究室では,卒業記念品として定番ですね(過去記事1過去記事2)。ただし,今回のは,3Dプリンターで作製した額縁付きの豪華版です。

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当研究室特任教授の門田先生は江刺先生と東北大学電気系で同期です。門田先生の向かって右横にいらっしゃるのは,普段からお世話になっている名誉教授の櫛引淳一先生で,やはり同期です。この年の東北大学電気系にはすごい人がたくさんおられます。門田先生も江刺先生も紫綬褒章の受章者です。同期3人と江刺先生の奥様とで記念撮影です。

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研究室一同,今回の江刺先生の御受賞を心からお祝いするとともに,これを励みにMEMS分野の研究開発を通じて産業界に貢献していきたいと思います。最後に,祝賀会を中心的に準備下さった当研究室ビジネスコーディネーターの蛸島さんに感謝します。

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Review of kiso zemi

Written by Liu Cong of D1
In past 10 weeks, if you asked me what I would do on Monday, my answer would be the kiso zemi. Yes, as teaching assistant (TA), I joined in this class given by Prof. Tanaka.
It is my first experience of being TA, so actually I was a little nervous before the first lesson. I don’t know what I should do for the lesson. Fortunately Prof. Tanaka explained patiently to students and me about the aims of the lesson so that all of us have a clear goal in my mind. The 6 students were also kind and friendly. To my surprise, most of them had the experience living abroad (it is a little strange for me to say the word “abroad”, www. Here I mean the countries outside Japan). So we were able to develop dialogue in extensive perspective.
What was much more important was the active participation of every speakers of our lab. The first speech lesson was given by Neelam san, Chand san and Salman san. They brought elaborate slides and opened a brand-new world to the students and me. For me, the diverse islands in Indonesia and also the diverse culture in India impressed me most. It made me feeling they are great countries because of the inclusivity. These speakers gave good starting point of kiso zemi.
Subsequently Froemel sensei, Tanaka san and Kaneko san gave the second lesson. Of course the theme was Germany. The German education system introduced by Froemel sensei made me think a lot, especially when I compared it with Chinese current one. I really think it may be better idea for China inducing some kind of German education rules. However, perhaps for the students, the Japanese views about Germany from Tanaka san and Kaneko san were more practical. These advices were really important for the B1 students for them planning their life.
The third lesson was given by Wang san, Zhou san, Sun san and me. We introduced again China to Japanese students. I say “again”, because as we know, the Japanese and Chinese cultures share too many common points. But we tried show some new things presently happening in China. I didn’t know whether speech information was enough but I was sure that it helped Japanese students recognize a developing China.
At the beginning of the fourth lesson, Hayasaka san joined our zemi via Skype from UC Berkeley. He gave a nice speech about his life course and his present life in America. His tortuous and excellent life impressed everyone in the classroom. Hayasaka san overcame all of any difficulties and his valued experiences inspired all of us.
After Hayasaka san’s speech, we had the “ladies’ meeting”. Three excellent female speechers, Nguyen san, Assila san and Thao san, gave enthusiastic reports about their own countries. Vietnamese delicious food and Moroccan beautiful sceneries gave me a great impression. After their introduction, I really begin to plan the tour to these countries.
Not only I but also all the students absorbed massive knowledge and broadened the view. At the last lesson, students shared their gains through presentations. Everyone thought highly of these experiences.
During the whole above process, Tanaka sensei provided elaborate and patient guidance. Here I appreciate for Tanaka sensei’s giving me such a chance as TA. I also must say thanks to every speaker for their perfect work. Thank you very much. Below are some pictures during the zemi and I am sorry for only few pictures (not including all speakers).
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IFCS 2016 held in New Orleans

    The story began few billion years ago, two black holes orbiting around each other started converging till they finally merged together, creating a unique black hole. The difference in energy between the prior and post-merger states created a ripple in the space-time frame that propagated in space as a gravitational wave (GW). In the meantime, following the theoretical prediction of GWs, scientists all over the world were enticed to design systems that could detect them. One of the detecting facilities was almost completely built by 1997: the laser interferometer gravitational wave observatory (LIGO). It has an L-shaped interferometer, with 4 km arms connecting the beam splitter to the mirrors maintained in constant vacuum. While for years, no acquired measurements led to the detection of GWs, improvements were introduced to the system in order to improve its sensitivity, that now is in the order of 1/10 000th the proton diameter.
    On the second half of last year, only three days prior to the switch of the LIGO from the engineering mode to the research mode, a chirp signal of 0.2 seconds has been detected. Further analysis proved that this signal was in fact created by the previously mentioned GW. However, from now on, detecting GWs won’t the social phenomenon it was the first time anymore. For indeed, the next detected GW on December 26 went almost invisible. While the detection of the first GW proved the existence of GWs, this isn’t the only reason it was grand at least not for the people involved in the LIGO team. It is impressive for being the fruit of years of small improvements in various fields (mechanics, optics, electronics, …) done by a number of people at a time when a finish line wasn’t visible yet.
    Previously this year, I had the chance to join the International Frequency Control Symposium in New Orleans, visiting the LIGO facilities nearby and assist to the talks of some of the people involved in the LIGO project. The scope of the conference was quite large, for it dealt with theoretical aspects as well as practical ones and from the nanoscale to the light-years scale. This year happened to be also the 50th anniversary of the Allan variance, so special sessions regarding the subjects were held. The host city was a very stimulating one from a cultural point of view, with its historical heritage as well as the heavy presence of museums, galleries and artistic venues.
    However, while the city of New Orleans is quite interesting and the different given lectures during the symposium were thought provoking, the most inspiring part was seeing how long can collaborative work spiced up with tenacity and perseverance go.

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IEEE NEMS 2016 Conference held in Sendai/Matsushima Bay

 This is Schroeder, former visiting student from Fraunhofer ENAS, who was attending S. Tanaka lab. In this blog entry, I want to report on the NEMS 2016 Conference held in Sendai/Matsushima Bay on 17th to 20th of April, 2016 as well as about my experience as a visiting student.

 The scope of the conference was Nano/Microengineered and Molecular Systems (NEMS). The conference is held annualy by different organizers all over the world. This year, S. Tanaka lab was responsible for the organization.
The conference began on Sunday, April 17th with a kind opening of Prof. Tanaka, followed by a premium tutorial given by Prof. Esashi. An introduction to MEMS, fabrication steps and applications for all kinds of MEMS technologies were presented. Also, the fabrication facilities at Tohoku University were introduced. Afterwards, conference attendees had the opportunity to join a tour in Sendai and a reception in the Hotel L-Park, Sendai.


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 On the next day, April 18th, the conference proceeded in Hotel Matsushima Taikanso. Matsushima offers one of the beautiful “Three Views of Japan”, a group of islands covered with pine trees. In up to six parallel sessions, speakers presented their latest results. During the poster session, attendees had another chance to make new contacts, to reinforce contacts or simply to present their results to the industry as well as to other researchers. In the evening, a banquet was held with typical Japanese food and seat style (i.e. sitting on the ground, not on chairs). The local major, Kouichi Sakurai, gave a speech about the opportunities in Matsushima prefecture. A pop group from Sendai, Iris, completed the cultural program. The conference went on until April 20th with plenary talks and another poster session, where I also had the opportunity to present my own research. On the last day, attendees could join a tour around Matsushima and see the Sakura (cherry blossom) as well as the devastations by the Tsunami in 2011.


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For me, this conference was the closing of a bit more than 6 months stay abroad in S. Tanaka lab. It was a great time and I want to thank Prof. Tanaka and all lab members again for the opportunity to conduct research in the hands-on facilities. I was teached a lot and could enjoy the help of all lab members. I was doing this research as an exchange between Fraunhofer ENAS in Germany and the S. Tanaka lab. For the Japanese students I can only recommend to do an exchange with Fraunhofer ENAS. You will learn a lot!

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