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전기자동차 파워모듈용 질화규소 기판의 열기계적 특성 및 열응력 해석에 대한 연구
서원,정청하,고재웅,김구성 한국반도체디스플레이기술학회 2019 반도체디스플레이기술학회지 Vol.18 No.4
The technology of electronic packaging among semiconductor technologies is evolving as an axis of the market in its own field beyond the simple assembly process of the past. In the field of electronic packaging technology, the packaging of power modules plays an important role for green electric vehicles. In this power module packaging, the thermal reliability is an important factor, and silicon nitride plays an important part of package substrates, Silicon nitride is a compound that is not found in nature and is made by chemical reaction between silicon and nitrogen. In this study, this core material, silicon nitride, was fabricated by reaction bonded silicon nitride. The fabricated silicon nitride was studied for thermo-mechanical properties, and through this, the structure of power module packaging was made using reaction bonded silicon nitride. And the characteristics of stress were evaluated using finite element analysis conditions. Through this, it was confirmed that reaction bonded silicon nitride could replace the silicon nitride as a package substrate.
西原?治(NISHIHARA Shinji) 조선대학교 지식경영연구원 2011 기업과 혁신연구 Vol.4 No.2
The main purpose of this article is to describe the system of Japanese earthquake insurance. Actually it is only in 1966 that ‘Earthquake Insurance Act’ in Japan has enforced. It is difficult to foresee the damages caused due to an earthquake because the possibility that a large-scale earthquake is caused is low. In addition to this, there is a possibility that enormous amount of damage occurs due to such a large-scale earthquake, and it is difficult to supplement damage only in a private nonlife insurance company. How did Japanese conquer these difficulties? Therefore, it takes a general view to have produced a present earthquake insurance regime in Japan.
西原?治(NISHIHARA, Shinji) 조선대학교 지식경영연구원 2013 기업과 혁신연구 Vol.6 No.1
The main purpose of this article is to examine the recent revision of Corporate Law System, especially on the Company Auditor System in Japan. It was 1899 that modern commercial code containing the regulation about company system has enacted before new ‘Uniform-Company Code’ in 2006. Since then, Japanese company law had a very big problem about controller-system what is called ‘Corporate Governance’. Therefore, revision of controller system through improving the Company Auditor System has been continued over many years. The company law revision under existing condition is also one of such the flows. However, unless the policy which makes a new system coexisting of the thought of self audit, which it has potentially in company law of Japan, is found at all, there is nothing for fundamental solution very much.