• 제목/요약/키워드: Source and drain electrodes

검색결과 105건 처리시간 0.029초

Self sustained n-type memory transistor devices based on natural cellulose paper fibers

  • Martins, R.;Barquinha, P.;Pereira, L.;Goncalves, G.;Ferreira, I.;Fortunato, E.
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
    • /
    • pp.1044-1046
    • /
    • 2009
  • Here we report the architecture for a non-volatile n-type memory paper field-effect transistor. The device is built using the hybrid integration of natural cellulose fibers (pine and eucalyptus fibers embedded in an ionic resin), which act simultaneously as substrate and gate dielectric, with amorphous GIZO and IZO oxides as gate and channel layers, respectively. This is complemented by the use of continuous patterned metal layers as source/drain electrodes.

  • PDF

Pentacene 박막트랜지스터의 제조와 전기적 특성 (Fabrication of Pentacene Thin Film Transistors and Their Electrical Characteristics)

  • 김대엽;최종선;강도열;신동명;김영환
    • 한국전기전자재료학회:학술대회논문집
    • /
    • 한국전기전자재료학회 1999년도 추계학술대회 논문집
    • /
    • pp.598-601
    • /
    • 1999
  • There is currently considerable interest in the applications of conjugated polymers, oligomers and small molecules for thin-film electronic devices. Organic materials have potential advantages to be utilized as semiconductors in field effect transistor and light emitting didoes. In this study, Pentacene thin film transistors(TFTs) were fabricated on glass substrate. Aluminum and Gold wei\ulcorner used fur the gate and source/drain electrodes. Silicon dioxde was deposited as a gate insulator by PECVD and patterned by R.I.E. The semiconductor layer of pentacene was thermally evaporated in vaccum at a pressure of about 10$^{-8}$ Torr and a deposition rate 0.3$\AA$/sec. The fabricated devices exhibited the field-effect mobility as large as 0.07cm$^2$/Vs and on/off current ratio larger than 10$^{7}$

  • PDF

Pentacene을 이용한 유기 TFT의 전기적 특성 향상에 관한 연구 (A STUDY ON THE ELECTRICAL CHARACTERISTICS IMPROVEMENTS OF PENTACENE-BASED ORGANIC THIN FILM TRANSISTORS)

  • 이종혁;박재훈;류세원;김형준;최종선
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2001년도 하계학술대회 논문집 C
    • /
    • pp.1515-1517
    • /
    • 2001
  • In this work the electrical characteristics of organic TFTs with the semiconductor-insulator interfaces have been interested. Pentacene is used as an active semiconducting layer. The semiconductor layer of pentacene was thermally evaporated in vacuum at a pressure of about $2{\times}10^{-6}$ Torr and at a deposition rate of 0.3$\AA$/sec. Aluminium and gold were used for gate and source/drain electrodes. before pentacene is deposited on the insulator, the gate dielectric surfaces of two samples were rubbed with lateral and perpendicular to direction of the channel length respectively.

  • PDF

Enhanced hole injection by oxygen plasma treatment on Au electrode for bottom-contact pentacene organic thin-film transistors

  • Kim, Woong-Kwon;Hong, Ki-Hyon;Kim, Soo-Young;Lee, Jong-Lam
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
    • /
    • pp.74-77
    • /
    • 2006
  • Thin $AuO_x$ layer was formed by $O_2$ plasma treatment on Au electrode. The surface work function of plasma treatment showed higher by 0.5 eV than that of bare Au, reducing the hole injection barrier at the Au/pentacene interface. Using $O_2$ plasma-treated Au source-drain electrodes, the field-effect mobility of bottom-contact pentacene-OTFT was increased from 0.05 to 0.1 $cm^2/Vs$.

  • PDF

다양한 공정 방법으로 제작된 다결정 실리콘 박막 트랜지스터 단위 CMOS 회로의 특성 (Characteristics of Polycrystalline Silicon TFT Unitary CMOS Circuits Fabricated with Various Technology)

  • 유준석;박철민;전재홍;한민구
    • 대한전기학회논문지:전기물성ㆍ응용부문C
    • /
    • 제48권5호
    • /
    • pp.339-343
    • /
    • 1999
  • This paper reports the characteristics of poly-Si TFT unitary CMOS circuits fabricated with various techniques, in order to investigate the optimum process conditions. The active films were deposited by PECVD and LPCVD using $SiH_4\; and\; Si_2H_6$ as source gas, and annealed by SPC and ELA methods. The impurity doping of the oource and drain electrodes was performed by ion implantation and ion shower. In order to investigate the AC characteristics of the poly-Si TFTs processed with various methods, we have examined the current driving characteristics of the polt-Si TFT and the frequency characteristics of 23-stage CMOS ring oscillators. Ithas been observed that the circuits fabricated using $Si_2H_6$ with low-temperature process of ELA exhibit high switching speed and current driving performances, thus suitable for real application of large area electronics.

  • PDF

Fabrication of 1-${\mu}m$ channel length OTFTs by microcontact printing

  • Shin, Hong-Sik;Baek, Kyu-Ha;Yun, Ho-Jin;Ham, Yong-Hyun;Park, Kun-Sik;Lee, Ga-Won;Lee, Hi-Deok;Wang, Jin-Suk;Lee, Ki-Jun;Do, Lee-Mi
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
    • /
    • pp.1118-1121
    • /
    • 2009
  • We have fabricated inverted staggered pentacene Thin Film Transistor (TFT) with 1-${\mu}m$ channel length by micro contact printing (${\mu}$-CP) method. Patterning of micro-scale source/drain electrodes without etching was successfully achieved using silver nano particle ink, Polydimethylsiloxane (PDMS) stamp and FC-150 flip chip aligner-bonder. Sheet resistance of the printed Ag nano particle films were effectively reduced by two step annealing at $180^{\circ}C$.

  • PDF

CuPc 유도체를 사용한 OFET의 전기적 특성 연구 (Electrical Properties of CuPc Field-effect Transistor Using CuPc Derivate Material)

  • 이호식;박용필;천민우;김태곤;김영표
    • 한국전기전자재료학회:학술대회논문집
    • /
    • 한국전기전자재료학회 2009년도 하계학술대회 논문집
    • /
    • pp.279-280
    • /
    • 2009
  • Organic field-effect transistors (OFETs) are of interest for use in widely area electronic applications. We fabricated a copper phthalocyanine (CuPc) based field-effect transistor with different metal electrode. The CuPc FET device was made a top-contact type and the substrate temperature was room temperature. The source and drain electrodes were used an Au and Al materials. The CuPc thickness was 40nm, and the channel length was $50{\mu}m$, channel width was 3mm. We observed a typical current-voltage (I-V) characteristics in CuPc FET with different electrode materials.

  • PDF

CuPc를 이용한 전계효과트랜지스터의 전기적 특성 (Electrical Properties of CuPc Field-effect Transistor)

  • 이호식;박용필
    • 한국전기전자재료학회:학술대회논문집
    • /
    • 한국전기전자재료학회 2008년도 추계학술대회 논문집 Vol.21
    • /
    • pp.410-411
    • /
    • 2008
  • Organic field-effect transistors (OFETs) are of interest for use in widely area electronic applications. We fabricated a copper phthalocyanine (CuPc) based field-effect transistor with different metal electrode. The CuPc FET device was made a top-contact type and the substrate temperature was room temperature. The source and drain electrodes were used an Au and Al materials. The CuPc thickness was 40nm, and the channel length was $50{\mu}m$, channel width was 3mm. We observed a typical current-voltage (I-V) characteristics in CuPc FET with different electrode materials.

  • PDF

트랜치 기법을 이용한 SOI MOSFET의 전기적인 특성에 관한 연구 (A New Structure of SOI MOSFETs Using Trench Mrthod)

  • 박윤식
    • 한국컴퓨터산업교육학회:학술대회논문집
    • /
    • 한국컴퓨터산업교육학회 2003년도 제4회 종합학술대회 논문집
    • /
    • pp.67-70
    • /
    • 2003
  • In this paper, propose a new structure of MOFET(Metal-Oxide-Semiconductor Field Effect Transistor) which is widely application for semiconductor technologies. Eleminate the latch-up effect caused by closed devices when conpose a electronic circuit using proposed devices. In this device have a completely isolation structure, and advantage of leakage current elimination. Each independent devices are isolated by trench-well and oxide layer of SOI substrate. Using trench gate and self aligned techniques reduces parasitic capacitance between gate and source, drain. In this paper, we proposed the new structure of SOI MOSFET which has completely isolation and contains trench gate electrodes and SOI wafers. It is simulated by MEDICI that is device simulator.

  • PDF

CuPc Field-effect Transistor의 전기적 특성 (Electrical Properties of CuPc Field-effect Transistor)

  • 이호식;박용필
    • 한국정보통신학회:학술대회논문집
    • /
    • 한국해양정보통신학회 2008년도 추계종합학술대회 B
    • /
    • pp.619-621
    • /
    • 2008
  • Organic field-effect transistors (OFETs) are of interest for use in widely area electronic applications. We fabricated a copper phthalocyanine (CuPc) based field-effect transistor with different metal electrode. The CuPc FET device was made a top-contact type and the substrate temperature was room temperature. The source and drain electrodes were used an Au and Al materials. The CuPc thickness was 40nm, and the channel length was $50{\mu}m$, channel width was 3mm. We observed a typical current-voltage (I-V) characteristics in CuPc FET with different electrode materials.

  • PDF