한국안전학회지 (Journal of the Korean Society of Safety)

  • 제22권5호
  • /
  • Pages.27-32
  • /
  • 2007
  • /
  • 1738-3803(pISSN)
  • /
  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
권호 표지

인위적인 전자파에 의한 TTL IC의 오동작 및 파괴 특성

Breakdown and Destruction Characteristics of the TTL IC by the Artificial Microwave

  • Hong, Joo-Il (Department of Electrical Engineering, Inha University) ;
  • Hwang, Sun-Mook (Department of Electrical Engineering, Inha University) ;
  • Huh, Chang-Su (Department of Electrical Engineering, Inha University)
  • 발행 : 2007.10.31
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초록

We investigated the damage of the TTL ICs which manufactured five different technologies by artificial microwave. The artificial microwave was rated at a microwave output from 0 to 1000W, at a frequency of 2.45GHz. The microwave power was extracted into a standard rectangular waveguide(WR-340) and TTL ICs were located into the waveguide. TTL ICs were damaged two types. One is breakdown which means no physical damage is done to the system and after a reset the system is going back into function. The other is destruction which means a physical damage of the system so that the system will not recover without a hardware repair. TTL SN74S08N and SN74ALS08N devices get a breakdown and destruction occurred but TTL SN74LS08N, SN74AS08N and 74F08N devices get a destruction occurred. Also destructed TTL ICs were removed their surface and a chip conditions were analyzed by SEM. The SEM analysis of the damaged devices showed onchipwire and bondwire destruction like melting due to thermal effect. The tested results expect to be applied to the fundamental data which interprets the combination mechanism of the semiconductors from artificial microwave environment.

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참고문헌

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