• 제목/요약/키워드: Transistors

검색결과 1,947건 처리시간 0.027초

Modified CMOS Composite Transistors

  • Yu, Young-Gyu;Lee, Geun-Ho;Kim, Dong-Yong
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2000년도 추계종합학술대회 논문집(2)
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    • pp.63-66
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    • 2000
  • In this paper, we propose two new CMOS composite transistors with an improved operating region by reducing a threshold voltage. The proposed composite transistor 1 and 2 employ a P-type folded composite transistor and an electronic zener diode in order to decrease the threshold voltage, respectively. The simulation has been carried oui using 0.25$\mu\textrm{m}$ n-well process with 2.5V supply voltage.

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Contact resistance in graphene channel transistors

  • Song, Seung Min;Cho, Byung Jin
    • Carbon letters
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    • 제14권3호
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    • pp.162-170
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    • 2013
  • The performance of graphene-based electronic devices is critically affected by the quality of the graphene-metal contact. The understanding of graphene-metal is therefore critical for the successful development of graphene-based electronic devices, especially field-effect-transistors. Here, we provide a review of the peculiar properties of graphene-metal contacts, including work function pinning, the charge transport mechanism, the impact of the process on the contract resistance, and other factors.

Study on Characteristics of Organic Thin Film Transistors with Rubbed Organic Gate Insulators

  • Lee, Jong-Hyuk;Kang, Chang-Heon;Choi, Jong-Sun;Lee, Sin-Doo
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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    • pp.717-720
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    • 2002
  • In this work, the electrical characteristics of organic thin film transistors with the surface-treated organic gate insulators have been studied. For the surface treatment, the simple rubbing technique was used. The field effect mobilities of the devices with PVP gate insulator was improved about four times as high as those of TFTs without the insulator surface treatment.

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Organic Light Emitting Transistors for Flexible Displays

  • Kudo, Kazuhiro;Endoh, Hiroyuki;Watanabe, Yasuyuki
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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    • pp.137-140
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    • 2005
  • Organic light emitting transistors (OLET) which are vertically combined with the organic static induction transistor (OSIT) and organic light emitting diode (OLED) are fabricated and the device characteristics are investigated. High luminance modulations by relatively low gate voltages are obtained. In order to realize the flexible electronic circuits and displays, we have fabricated OSIT on plastic substrates. The OSIT fabricated on plastic substrate show almost same characteristics comparing with those of nonflexible OSIT on glass substrate. The OLET described here is a suitable element for flexible sheet displays.

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비정질 실리콘 박막 트랜지스터의 회로 분석을 위한 해석적 모델링 (Analytical Modeling for Circuit Simulation of Amorphous Silicon Thin Film Transistors)

  • 최홍석;박진석;오창호;한철희;최연익;한민구
    • 대한전기학회논문지
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    • 제40권5호
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    • pp.531-539
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    • 1991
  • We develop an analytical model of the static and the dynamic characteristics of amorphous silicon thin film transistors (a-Si TFTs) in order to incorporate into a widely used circuit simulator such as SPICE. The critical parameters considered in our analytical model of a-Si TFT are the power factor (XN) of saturation source-drain current and the effective channel length (L') at saturation region. The power factor, XN must not always obey so-called

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Electrical Characteristics of Pentacene Thin-Film Transistors with Polyvinylpyrrolidone Gate Insulator

  • Kim, Dong-Wook;Lee, Jong-Won;Noh, Jung-Chul;Choi, Jong-Sun
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.579-582
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    • 2009
  • This paper reports the electrical characteristics of polyvinylpyrrolidone (PVPy) and the performance of organic thin-film transistors with PVPy as a gate insulator. PVPy shows a dielectric constant of about 3 and contributes to the upright growth of pentacene molecules with 15.3${\AA}$ interplanar spacing. These results will be discussed.

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New Fabrication Process of Vertical-Type Organic TFTs for High-Current Drivers

  • Kudo, Kazuhiro;Nakamura, Masakazu
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.307-309
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    • 2009
  • We have fabricated vertical-type organic transistors (static induction transistors; SITs) with built-in nano-triode arrays formed in parallel by a colloidal-lithography technique. Using this technique, we could fabricate a microstructure in a lateral direction within a large-scale organic device without relying on photolithography. The organic transistor showed low operating voltages, high current output, and large transconductance.

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Simultaneous Measurements of Drain-to-Source Current and Carrier Injection Properties of Organic Thin-Film Transistors

  • Majima, Yutaka
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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    • pp.271-272
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    • 2007
  • Displacement current $(I_{dis})$ and drain-to-source current $(I_{DS})$ are evaluated using the simultaneous measurements of source $(I_S)$ and drain $(I_D)$ currents during the application of a constant drain voltage and a triangular-wave gate voltage $(V_{GS})$ to top-contact pentacene thin-film transistors.

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Gate dielectric based on organic-inorganic hybrid polymer in organic thin-film transistors

  • Lee, Seong-Hui;Jeong, Sun-Ho;Moon, Joo-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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    • pp.727-729
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    • 2007
  • Inorganic-organic hybrid polymer provides various advantages including low-temperature process, high dielectric constant and direct photo-patterning. The hybrid dielectric was synthesized by the sol-gel process in which an acid-catalyzed solution of Si alkoxide and Zr alkoxide was used as a precursor. The electrical performance of transistors with hybrid dielectric was investigated.

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