Journal of the Korean Institute of Telematics and Electronics S (전자공학회논문지S)

The Institute of Electronics and Information Engineers (대한전자공학회)
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An optimal structure of impedance control in high density layout in a high multilayer PCB

박판화된 고다층기판에서 고밀도 배선의 임피던스 제어 최적 구조

  • 이명호 (한국전자통신연구원 ATM 기술연구부) ;
  • 전용일 (한국전자통신연구원 ATM 기술연구부) ;
  • 전병윤 (한국전자통신연구원 ATM 기술연구부) ;
  • 박권철 (한국전자통신연구원 ATM 기술연구부) ;
  • 강석열 (한국전자통신연구원 ATM 기술연구부)
  • Published : 1997.11.01
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Abstract

In this paper, we show an optimal structure of impedance control in high density layouts ina high multilayers PCB. The impedance control in a high multilayers FR-4 PCB is very portant isue because a dielectric layer's thickness is very thin. Especially, odd mode impedance control is more difficult than characteristic impedance control in high multilayers PCB. So, we show an optimal structure of odd mode impedance control in that dielectric thickness is about 0.1mm with limited state and discuss multilayers PCB's for swich circuti pack and backplane in developing algorith scale ATM witching system in next time.

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