• Title/Summary/Keyword: silicide

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Electrical Characteristics of NMOSFET's with Asymmetric Source/Drain Region (비대칭 소오스/드레인을 갖는 NMOSFET의 전기적 특성)

  • 공동욱;이재성이용현
    • Proceedings of the IEEK Conference
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    • 1998.10a
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    • pp.533-536
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    • 1998
  • The electrical characteristics of NMOSFETs with asymmetrical source/drain regions have been expermentally investigated using test devices fabricated by $0.35\mu\textrm{m}$ CMOS technology. The performance degradation for asymmetric transistor and its causes are analyzed. The parasitic resistances, such as series resistance of active regions and silicide junction contact resistance, are distributed in parallel along the channel. Depending on source/drain geometry, the array of those resistances is changed, that results the various electrical properties.

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핵연료심 피복에 미치는 온도 및 die 영향

  • 이종탁;조해동;고영모;이돈배;김창규
    • Proceedings of the Korean Nuclear Society Conference
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    • 1996.05c
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    • pp.219-224
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    • 1996
  • 하나로 핵연료인 uranium silicide 봉상 핵연료의 cladding은 핵연료 심재인 U$_3$Si-Al봉과 Al 1060 cladding 재의 접합이 잘 이루어지고, cladding 재인 Al이 완전하게 용접되어 cladding 층내에 결함이 없이 cladding 되는 최적의 온도는 51$0^{\circ}C$이며, 핵연료심의 직경이 감소되거나 변형되지 않고 핵연료심과 cladding 재가 잘 압착되는 nipple과 die 사이 거리는 0.9 - 1.5mm 이다.

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Study of Improvement of Gate Oxide Quality by Using an Advanced, $TiSi_2$ process & STI (새로운 $TiSi_2$ 형성방법과 STI를 이용한 초박막 게이트 산화막의 특성 개선 연구)

  • 엄금용;오환술
    • Proceedings of the IEEK Conference
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    • 2000.11b
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    • pp.41-44
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    • 2000
  • Ultra large scale integrated circuit(ULSI) & complementary metal oxide semiconductor(CMOS) circuits require gate electrode materials such as meta] silicides, titanium-silicide for gate oxides. Many previous authors have researched the improvements sub-micron gate oxide quality. However, little has been done on the electrical quality and reliability of ultra thin gates. In this research, we recommend novel shallow trench isolation structure and two step TiSi$_{2}$ formation for sub 0.1${\mu}{\textrm}{m}$ gate oxide.

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Co-Silicide Device Characteristics in Embedded DRAM

  • Kim, Jong-Chae;Kim, Yeong-Cheol;Kim, Byung-Kook
    • Korean Journal of Crystallography
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    • v.12 no.3
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    • pp.162-165
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    • 2001
  • The EDL (Embedded DRAM and Logic) technologies with stack cell capacitors based on NO dielectric and Co-silicided source/drain junctions using a Ti capping material, were successfully implemented. The employed Co-silicided film exhibited junction leakage characteristics comparable to those of non-silicided junctions. Improved device characteristics without degradation of I/sub off/ was also achieved.

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Dielectric Brekdown Chatacteristecs of the Gate Oxide for Ti-Polycide Gate (Ti-Ploycide 게이트에서 게이트산화막의 전연파괴특성)

  • Go, Jong-U;Go, Jong-U;Go, Jong-U;Go, Jong-U;Park, Jin-Seong;Go, Jong-U
    • Korean Journal of Materials Research
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    • v.3 no.6
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    • pp.638-644
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    • 1993
  • The degradation of dielectric breakdown field of 8nm-thick gate oxide ($SiO_2$) for Tipolycide MOS(meta1-oxide-semiconductor) capacitor with different annealing conditions and thickness of the polysilicon film on gate oxide was investigated. The degree of degradation in dielectric breakdown strength of the gate oxide for Ti-polycide gate became more severe with increasing annealing temperature and time, especially, for the case that thickness of the polysilicon film remained on the gate oxide after silicidation was reduced. The gate oxide degradation may be occurred by annealing although there is no direct contact of Ti-silicide with gate oxide. From SIMS analysis, it was confirmed that the degration of gate oxide during annealing was due to the diffusion of titanium atoms into the gate oxide film through polysilicon from the titanium silicide film.

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A Systematic Method for SPICE Simulation of Electrical Characteristics of Poly-Si TFT-LCD Pixel (SPICE를 사용한 다결정 실리콘 TFT-LCD 화소의 전기적 특성 시뮬레이션 방법의 체계화)

  • Son, Myung-Sik;Ryu, Jae-Il;Shim, Seong-Yung;Jang, Jin;Yoo Keon-Ho
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.38 no.12
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    • pp.25-35
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    • 2001
  • In order to analyze the electrical characteristics of complicated thin film transistor-liquid crystal display (TFT-LCD) array circuits, it is indispensible to use simulation programs such as PSPICE and AIM-SPICE. In this paper, we present a systematic method of extracting the input parameters of poly-Si TFT for SPICE simulations. This method was applied to two different types of poly-Si TFTs, fabricated by excimer laser annealing and silicide mediated crystallization methods, and yielded good fitting results to experimental data. Among the SPICE simulators, PSPICE has the graphic user interface feature making the composition of complicated circuits easier. We added successfully a poly-Si TFT device model to the PSPICE simulator, and analyzed easily the electrical characteristics of pixels considering the line RC delay. The results of this work would contribute to efficient simulations of poly-Si TFT-LCD arrays.

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