• Title/Summary/Keyword: ONO

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Three Species of the Genus Walckenaeria (Araneae: Linyphiidae) New to Korea (코뿔애접시거미속 (거미목: 접시거미과)의 3 한국미기록종)

  • Seo, Bo Keun
    • Korean journal of applied entomology
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    • v.52 no.2
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    • pp.101-108
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    • 2013
  • Three species of the linyphiid genus Walckenaeria, Walckenaeria chikunii Saito and Ono, 2001, Walckenaeria furcillata (Menge, 1869), and Walckenaeria ichifusaensis Saito and Ono, 2001, are reported new to the Korean spider fauna. W. furcillata is widely distributed throughout the Palearctic region, but W. chikunii and W. ichifusaensis are only known from their type localities in Japan. Photographs and illustrations of the diagnostic characters are provided.

엔지니어 터널베리어($SiO_2/Si_3N_4/SiO_2$)와 고유전율($HfO_2$) 트랩층 구조를 가지는 비휘발성 메모리의 멀터레벨에 관한 연구

  • Yu, Hui-Uk;Park, Gun-Ho;Lee, Yeong-Hui;Jeong, Hong-Bae;Jo, Won-Ju
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2009.11a
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    • pp.56-56
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    • 2009
  • In this study, we fabricated the engineered $SiO_2/Si_3N_4/SiO_2$(ONO) tunnel barrier with high-k $HfO_2$ trapping layer for application high performance flash MLC(Multi Level Cell). As a result, memory device show low operation voltage and stable memory characteristics with large memory window. Therefore, the engineered tunnel barrier with ONO stacks were useful structure would be effective method for high-integrated MLC memory applications.

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ONO ($SiO_2/Si_3N_4/SiO_2$), NON($Si_3N_4/SiO_2/Si_3N_4$)의 터널베리어를 갖는 비휘발성 메모리의 신뢰성 비교

  • Park, Gun-Ho;Lee, Yeong-Hui;Jeong, Hong-Bae;Jo, Won-Ju
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2009.11a
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    • pp.53-53
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    • 2009
  • Charge trap flash memory devices with modified tunneling barriers were fabricated using the tunneling barrier engineering technique. Variable oxide thickness (VARIOT) barrier and CRESTED barrier consisting of thin $SiO_2$ and $Si_3N_4$ dielectric layers were used as engineered tunneling barriers. The VARIOT type tunneling barrier composed of oxide-nitride-oxide (ONO) layers revealed reliable electrical characteristics; long retention time and superior endurance. On the other hand, the CRESTED tunneling barrier composed of nitride-oxide-nitride (NON) layers showed degraded retention and endurance characteristics. It is found that the degradation of NON barrier is associated with the increase of interface state density at tunneling barrier/silicon channel by programming and erasing (P/E) stress.

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Determination of Epipolar Geometry for High Resolution Satellite Images

  • Noh Myoung-Jong;Cho Woosug
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.652-655
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    • 2004
  • The geometry of satellite image captured by linear pushbroom scanner is different from that of frame camera image. Since the exterior orientation parameters for satellite image will vary scan line by scan line, the epipolar geometry of satellite image differs from that of frame camera image. As we know, 2D affine orientation for the epipolar image of linear pushbroom scanners system are well-established by using the collinearity equation (Testsu Ono, 1999). Also, another epipolar geometry of linear pushbroom scanner system is recently established by Habib(2002). He reported that the epipolar geometry of linear push broom satellite image is realized by parallel projection based on 2D affine models. Here, in this paper, we compared the Ono's method with Habib's method. In addition, we proposed a method that generates epipolar resampled images. For the experiment, IKONOS stereo images were used in generating epipolar images.

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Tmarus yaginumai Ono, 1977 (Araneae: Thomisidae) new to record for Korean spider fauna

  • Lee, Sue Yeon;Yoo, Jung Sun;Kim, Seung Tae
    • Journal of Species Research
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    • v.6 no.spc
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    • pp.51-53
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    • 2017
  • There are five known species of the genus Tmarus (Thomisidae) in Korea to date: Tmarus horvathi Kulczyn'ski, 1895, Tmarus koreanus Paik, 1973, Tmarus orientalis Schenkel, 1963, Tmarus piger (Walckenaer, 1802) and Tmarus rimosus Paik, 1973. Two females of Tmarus yaginumai Ono, 1977, which was previously only known in Japan, were collected by sweep net between the shrubs at hillocks near the coast of Korea and are described with taxonomic illustrations.

Electrical Characteristics of the PIP Antifuse for Configuration of the Programmable Logic Circuit (프로그램 가능한 논리 회로 구성을 위한 PIP 앤티퓨즈의 전기적 특성)

  • 김필중;윤중현;김종빈
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.14 no.12
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    • pp.953-958
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    • 2001
  • The antifuse is a semi-permanent memory device like a ROM which shows the open or short state, and a switch device connecting logic blocks selectively in FPGA. In addition, the antifuse has been used as a logic device to troubleshoot defective memory cells arising from SDRAM processing. In this study, we have fabricated ONO antifuses consisted of PIP structure. The antifuse shows a high resistance more than several G Ω in the normal state, and shows a low resistance less than 500 Ω after program. The program resistance variation according to temperature shows the very stable value of $\pm$20 Ω. At this time, its program voltage shows 6.7∼7.2 V and the program is performed within 1 second. Therefore this result shows that the PIP antifuse is a very stable and programmable logic device.

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