• Title/Summary/Keyword: Device characterization

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A Study on the Color Proofing CMS Development for the KOREA Offset Printing Industry (한국 오프셋 인쇄산업에 적합한 CMS 개발에 관한 연구)

  • Song, Kyung-Chul;Kang, Sang-Hoon
    • Journal of the Korean Graphic Arts Communication Society
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    • v.25 no.1
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    • pp.121-133
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    • 2007
  • The CMS(color management system) software was to enable consistent color reproduction from original to reproduction. The CMS was to create RGB monitor and printer characterization profiles and then use the profiles for device independent color transformation. The implemented CMM(color management module) used the CIELAB color space for the profile connection. Various monitor characterization model was evaluated for proper color transformation. To construct output device profile, SLI(sequential linear interpolation) method was used for the color conversion from CMYK device color to device independent CIELAB color space and tetrahedral interpolation method was used for backward transformation. UCR(under color removal) based black generation algorithm was used to construct CIELAB to CMYK LUT(lookup table). When transforming the CIE Lab colour space to CMYK, it was possible to involve the gray revision method regularized in the brightness into colour transformation process and optimize the colour transformation by black generation method based on UCR technique. For soft copy colour proofing, evaluating several monitor specialism methods showed that LUT algorithm was useful. And it was possible to simplify colour gamut mapping by constructing both the look-up table and the colour gamut mapping algorithm to a reference table.

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The Fabrication and Characterization of CODE MOSFET (CODE MOSFET 소자의 제작 및 특성)

  • 송재혁;김기홍;박영준;민홍식
    • Journal of the Korean Institute of Telematics and Electronics
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    • v.27 no.6
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    • pp.895-900
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    • 1990
  • With the MOS device scailing down, the substrate concentration must increase in order to avoid punchthrough leakage current due to the DIBL(Drain Induced Barrier Lowering) effect. However the enhancement of the substrate concentration increases source, drain juntion capacitances and substrate current due to hot elelctron, degrading the speed characteristics and reliability of the MOS devices. In this paper, a new device, called CODE(Channel Only Dopant Enhancement) MOS, an its fabrication are proposed. By comparing the fabricated CODE MOSFET with the conventional device, the improvements on DIBL, substrate current and source, drain juntion capacitances are realized.

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A Study on the Device Independent Color Reproduction of CCD Input Devices based the ICC Profile (ICC Profile에 기반한 CCD 입력장치의 장치독립적 색재현에 관한 연구)

  • Song, Kyung-Chul;Shin , Chun-Bum;Kang, Sang-Hoon
    • Journal of the Korean Graphic Arts Communication Society
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    • v.23 no.1
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    • pp.27-36
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    • 2005
  • Most of flated scanners and digital cameras in prepress process utilize CCD technology. Device calibration and characterization process is needed to transform the device dependent color to the device independent color. ICC profiles for digital input devices encapsulated information relating the device values to CIELAB or CIEXYZ coordinates. The main purposes of this article is to evaluate some of the transformation methods based on ICC proposed device profiles and to propose optimal color transformation method for accurate color imaging in printing process.

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Electrical Characterization of Nano SOI Wafer by Pseudo MOSFET (Pseudo MOSFET을 이용한 Nano SOI 웨이퍼의 전기적 특성분석)

  • Bae, Young-Ho;Kim, Byoung-Gil;Kwon, Kyung-Wook
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.18 no.12
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    • pp.1075-1079
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    • 2005
  • The Pseudo MOSFET measurements technique has been used for the electrical characterization of the nano SOI wafer. Silicon islands for the Pseudo MOSFET measurements were fabricated by selective etching of surface silicon film with dry or wet etching to examine the effects of the etching process on the device properties. The characteristics of the Pseudo MOSFET were not changed greatly in the case of thick SOI film which was 205 nm. However the characteristics of the device were dependent on etching process in the case of less than 100 nm thick SOI film. The sub 100 nm SOI was obtained by thinning the silicon film of standard thick SOI wafer. The thickness of SOI film was varied from 88 nm to 44 nm by chemical etching. The etching process effects on the properties of pseudo MOSFET characteristics, such as mobility, turn-on voltage, and drain current transient. The etching Process dependency is greater in the thinner SOI wafer.

Fabrication and Characterization of 32x32 Silicon Cantilever Array using MEMS Process (MEMS 공정을 이용한 32x32 실리콘 캔틸레버 어레이 제작 및 특성 평가)

  • Kim Young-Sik;Na Kee-Yeol;Shin Yoon-Soo;Park Keun-Hyung;Kim Yeong-Seuk
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.19 no.10
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    • pp.894-900
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    • 2006
  • This paper reports the fabrication and characterization of $32{\times}32$ thermal cantilever array for nano-scaled memory device applications. The $32{\times}32$ thermal cantilever array with integrated tip heater has been fabricated with micro-electro-mechanical systems(MEMS) technology on silicon on insulator(SOI) wafer using 9 photo masking steps. All of single-level cantilevers(1,024 bits) have a p-n junction diode in order to eliminate any electrical cross-talk between adjacent cantilevers. Nonlinear electrical characteristic of fabricated thermal cantilever shows its own thermal heating mechanism. In addition, n-channel high-voltage MOSFET device is integrated on a wafer for embedding driver circuitry.

Fabrication and Characterization of Thermally Actuated Bimorph Probe for Living Cell Measurements with Experimental and Numerical Analysis

  • Cho Young-Hak;Kang Beom-Joon;Hong Seok-Kwan;Kang Jeong-Jin
    • Journal of Mechanical Science and Technology
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    • v.20 no.3
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    • pp.297-309
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    • 2006
  • This paper deals with a novel structure for single-cell characterization which makes use of bimorph micro thermal actuators combined with electrical sensor device and integrated microfluidic channel. The goal for this device is to capture and characterize individual biocell. Quantitative and qualitative characteristics of bimorph thermal actuator were analyzed with finite element analysis methods. Furthermore, optimization for the dimension of cantilevers and integrated parallel probe systems with microfluidic channels is able to be realized through the virtual simulation for actuation and the practical fabrication of prototype of probes. The experimental value of probe deflection was in accordance with the simulated one.