• 제목/요약/키워드: RTA temperature

검색결과 243건 처리시간 0.024초

에피 코발트 실리사이드막으로 부터의 붕소 확산을 이용한 극저층 $p^{+}$n 접합 형성 (Ultra shallow $p^{+}$n junction formation using the boron diffusin form epi-co silicide)

  • 변성자;권상직;김기범;백홍구
    • 전자공학회논문지A
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    • 제33A권7호
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    • pp.134-142
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    • 1996
  • The epi-CoSi$_{2}$ layer was formed by alloying a Co(120$\AA$)/Ti(50$\AA$) bilayer. In addition, the ultra shallow p$^{+}$n junction of which depth is about not more than 40nm at the background concentration, 10$^{18}$atoms/cm$^{3}$ could be formed by annealing (RTA-II) the ion implanted epi-silicide. When the temperature of RTA-I is as low as possible and that of RTA-II is moderate, the p$^{+}$n junction that has low leakage current and stable epi-silicide layer could be obtained. That is, when th econdition of TRA-I was 900$^{\circ}C$/20sec and that of RTA-II was 900$^{\circ}C$/10sec, the reverse leakage current was as high as 11.3$\mu$A/cm$^{2}$ at -5V. The surface of CoSi$_{2}$ appeared considerably rough. However, when the conditon of RTA-I was 800$^{\circ}C$/20sec or 700$^{\circ}C$/20sec, the leakage currents were as low as 8.3nA/cm$^{2}$ and 9.3nA/cm$^{2}$, respectively and also the surfaces appeared very uniform.

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ALD와 저온 RTA를 이용한 자가정렬 Ru 응집체의 제조와 물성 (Study on Self-Organized Ru Dots Using ALD and Low Temperature Rapid Thermal Annealing Process)

  • 박종승;노윤영;송오성
    • 대한금속재료학회지
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    • 제50권8호
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    • pp.557-562
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    • 2012
  • Self-organized ruthenium (Ru) dots were fabricated by $400^{\circ}C$ RTA (rapid thermal annealing) and ALD (atomic layer deposition). The dots were produced under the $400^{\circ}C$ RTA conditions for 10, 30 and 60 seconds on all Si(100)/200 nm-SiO2, glass, and glass/fluorine-doped tin oxide (FTO) substrates. Electrical sheet resistance, and surface microstructure were examined using a 4-point probe and FE-SEM (field emission scanning electron microscopy). Ru dots were observed when a 30 nm-Ru layer on a Si(100)/200 nm-SiO2 substrate was annealed for 10, 30 and 60 seconds, whereas the dots were only observed on a glass substrate when a 50 nm-Ru layer was annealed on glass. For a glass/FTO substrate, RTA <30 seconds was needed for 30 nm Ru thick films. Those dots can increase the effective surface area for silicon and glass substrates by up to 5-44%, and by 300% for the FTO substrate with a < $20^{\circ}$ wetting angle.

RTA 후속 열처리에 따른 ZnO/Cu/ZnO 박막의 투명전극 및 발열체 특성 연구 (Effect of Rapid Thermal Annealing on the Transparent Conduction and Heater Property of ZnO/Cu/ZnO Thin Films)

  • 이연학;김대일
    • 열처리공학회지
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    • 제36권3호
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    • pp.115-120
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    • 2023
  • ZnO/Cu/ZnO (ZCZ) thin film deposited on the glass substrate with DC and RF magnetron sputtering was rapid thermal annealed (RTA) and then effect of thermal temperature on the opto-electical and transparent heater properties of the films were considered. The visible transmittance and electrical resistivity are depends on the annealing temperature. The electrical resistivity decreased from 1.68 × 10-3 Ωcm to 1.18 × 10-3 Ωcm and the films annealed at 400℃ show a higher transmittance of 78.5%. In a heat radiation test, when a bias voltage of 20 V is applied to the ZCZ film annealed at 400℃, its steady state temperature is about 70.7℃. In a repetition test, the steady state temperature is reached within 15s for all of the bias voltages.

SiGe HBT 제작을 위한 실리콘 게르마늄 단결정 박막의 RBS 분석 (RBS Analysis on the Si0.9Ge0.1 Epitaxial Layer for the fabrication of SiGe HBT)

  • 한태현;안호명;서광열
    • 한국전기전자재료학회논문지
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    • 제17권9호
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    • pp.916-923
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    • 2004
  • In this paper, the strained Si$_{0.9}$Ge$_{0.1}$ epitaxial layers grown by a reduced pressure chemical vapor deposition (RPCVD) on Si (100) were characterized by Rutherford backscattering spectrometery (RBS) for the fabrication of an SiGe heterojunction bipolar transistor(HBT). RBS spectra of the ${Si}_0.9{Ge}_0.1$epitaxial layers grown on the Si substrates which were implanted with the phosphorus (P) ion and annealed at a temperature between $850^{\circ}C$ - $1000^{\circ}C$ for 30min were analyzed to investigate the post thermal annealing effect on the grown${Si}_0.9{Ge}_0.1$epitaxial layer quality. Although a damage of the substrates by P ion-implantation might be cause of the increase of RBS yield ratios, but any defects such as dislocation or stacking fault in the grown ${Si}_0.9{Ge}_0.1$ epitaxial layer were not found in transmission electron microscope (TEM) photographs. The post high temperature rapid thermal annealing (RTA) effects on the crystalline quality of the ${Si}_0.9{Ge}_0.1$ epitaxial layers were also analyzed by RBS. The changes in the RBS yield ratios were negligible for RTA a temperature between $900^{\circ}C$ - $1000^{\circ}C$for 20 sec, or $950^{\circ}C$for 20 sec - 60 sec. A SiGe HBT array shows a good Gummel characteristics with post RTA at $950^{\circ}C$ for 20 sec.sec.sec.

Preparation of spray-coated $TiO_2$ electrodes and I-V characteristics for Dye-sensitized Solar Cells

  • Lee, Won-Jae;Koo, Bo-Kun;Kim, Hyun-Joo;Lee, Dong-Yun;Song, Jae-Sung
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2004년도 추계학술대회 논문집 Vol.17
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    • pp.687-690
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    • 2004
  • Fabrication and characterization of dye-sensitized TiO2 solar cells(DSSC) consisting of spray-coated TiO2 electrode, an electrolyte containing I-/I3- redox couple, and a Pt-coated counter electrode carried out, using mainly FE-SEM and solar simulator. Also, effect of rapid thermal annealing(RTA) temperatue on I-V curves of DSSCS consisting of approximately 10m thickness and $5{\times}5mm2$ active area. No significant difference in the apparent size of TiO2 clusters was observed with increasing RTA temperature. Also, an open circuit voltage(Voc) of approximately 0.70V and a short-circuit photocurrent(Jsc) of 8 to 12mA/cm2 were observed in the TiO2 solar cell. With increasing RTA temperature upto 550oC, photocurrent density of dye-sensitized solar cells was enhanced, leading to enhancing the efficiency of dye-sensitized solar cells having Pt-electroplated counter electrode.

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Sol-gel법으로 제조된 강유전성 PZT박막의 건조온도 및 열처리에 따른 전기적 특성 평가 (Electrical Properties of Sol-Gel Drived Ferroelectric PZT Thin Films dependent on Dry Temperature and Heat Treatment)

  • 배민호;임민수;김명녕;김동규;임기조;김현후
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1999년도 춘계학술대회 논문집
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    • pp.665-668
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    • 1999
  • Thin films of Pb(Zr,Ti)O$_3$ were fabricated by means of the sol-gel spin-coating method and the multi-coating of eight coating numbers. The thin films were dried on the temperature range of 250 ~ 400($^{\circ}C$), whenever the specimens were dried after each coating Processing. The fabricated ferroelectric thin films of lead zirconate titanate(PZT) were treated with the rapid thermal annealing(RTA) at 650($^{\circ}C$),or 3(min), and direct insertion thermal annealing(DITA) at 650($^{\circ}C$), for 30(min). The measured properties of dielectric thin films were following: The good results of dielectric properties were shown by the RTA specimen. The saturation polarization(Ps), remanent polarization(Pr), coercive field (Ec), dielectric constant and dielectric loss factor of the RTA specimen were estimated to be about 27.1[ $\mu$ C/$\textrm{cm}^2$], 13.7[ $\mu$ C/$\textrm{cm}^2$], 55.6(kV/cm), 786 and 6.4(%) respectively.

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RTA를 이용한 후열처리가 PZT 박막의 강유전 특성에 미치는 영향 (The effect of rapid thermal annealing treatment for ferroelectric properties of PZT thin films)

  • 주필연;박영;정규원;임동건;송준태
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1999년도 추계학술대회 논문집
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    • pp.136-139
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    • 1999
  • The post-annealing treatments on RF (Radio Frequency) magnetron sputtered PZI(Pb$\_$1.05/(Zr$\_$0.52/, Ti$\_$0.48/)O$_3$thin films(4000${\AA}$) have been investigated. for a structure of PZT/Pt/Ti/SiO$_2$/Si Crystallization pproperties of PZT films were strongly dependent on RTA(Rapid Thermal Annealing) annealing temperature. We were able to obtain a perovskite structure of PZT at a low temperature of 600$^{\circ}C$. P-E curves of Pd/PZT/Pt capacitor annealed at 700$^{\circ}C$ demonstrate typical hysteresis loops. The measured values of P$\_$r/, E$\_$c/, by post annealed at 700$^{\circ}C$ were 12.1 ${\mu}$C/$\textrm{cm}^2$, 120KV/cm respectively.

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스핀코팅 및 급속열처리 공정을 통해 형성된 Y2O3:Eu3+ 박막의 발광특성 (Luminescent Properties of Y2O3:Eu3+ Thin Film Through Spin-coating and Rapid Thermal Annealing Process)

  • 박재홍;정용석
    • 반도체디스플레이기술학회지
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    • 제23권1호
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    • pp.88-91
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    • 2024
  • The europium doped yttrium oxide (Y2O3:Eu3+) thin film was formed on a Si substrate by the conventional spin-coating process followed by rapid thermal annealing (RTA) treatment. The spinning profiles such as rotation speed, acceleration and holding times were controlled during the spin-coating process for the best condition of the Y2O3:Eu3+ thin film. The RTA treatment was conducted for several temperature in order to crystallize the spin coated film. The Y2O3:Eu3+ thin film presented best performance in the conditions of 4000 rpm, 30 s and 10 s of rotation speed, acceleration time and holding time, respectively, at a fixed RTA temperature of 900 ℃.

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Effect of Dry Process on Dielectric Properties of PZT Thin Films Prepared by Sol-Gel Process

  • Bae, Min-Ho;Lim, Kee-Joe;Kim, Hyun-Hoo;No, Kwang-soo
    • Transactions on Electrical and Electronic Materials
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    • 제3권1호
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    • pp.42-45
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    • 2002
  • Properties of lead zirconate titanate ferroelectric thin films prepared by rapid thermal annealing/direct insertion thermal annealing were investigated. The remnant polarization (Pr), saturation polarization (Ps), and coercive force (Ec) of typical samples annealed by rapid thermal annealing (RTA) are about 13.7 $\mu$ C/cm$^2$, 27.1 $\mu$C/cm$^2$, and 55.6 kV/cm, respectively. The dielectric constant of the sample is about 786, the dielectric loss tangent is about 2.4% at 1 kHz. Furthermore, ferroelectric, conduction, and piezoelectric properties of the thin films annealed by RTA process and the direct insertion thermal annealing (DITA) process were compared. The influence of temperature in the dry process on the above properties was also investigated.

Impurity-free vacancy diffusion 방법을 이용하여 압축 응력을 가진 InGaAs/InGaAsP 다중양자우물 구조의 무질서화 (Quantum well intermixing of compressively strained InGaAs/InGaAsP multiple quantum well structure by using impurity-free vacancy diffusion technique)

  • 김현수;박정우;오대곤;최인훈
    • 한국진공학회지
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    • 제9권2호
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    • pp.150-154
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    • 2000
  • Impurity-free vacancy diffusion 방법을 이용하여 압축 응력을 가진 InGaAs/InGaAsP 다중 양자 우물 구조에서 열처리 온도에 따른 무질서 정도를 조사하였다. InGaAs/SiO$_2$ cap 구조가 InP/$SiO_2$ cap 구조보다 급속열처리 (rapid thermal annealing : RTA) 과정에서 더 많은 청색 천이를 나타내었다. 열처리 온도 $700^{\circ}C$에서, InGaAs/$SiO_2$ cap 구조의 경우 다중양자우물의 밴드갭 파장은 1.55 $\mu\textrm{m}$대역에서 1.3 $\mu\textrm{m}$ 대역으로 이동하였으며, InGaAs/$SiO_2$ cap 구조와 InP/$SiO_2$ cap 구조의 밴드갭 파장차이는 195 nm (123 meV)로 높은 선택성을 나타내었다. 또한, DCXRD 스펙트럼으로부터 다중양자우물 구조에서 균일한 합금형태로 완전히 무질서화되는 것을 볼 수 있었다.

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