<link rel="stylesheet" href="styles.cf390c6bfbe7555f.css">

學術出版;;Publications

Permanent URI for this communityhdl:11536/1

收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

Browse

🏛️國立陽明交通大學機構典藏

Access type: Metadata onlyAuthor: search.filters.author.Lai, CH

Search Results

Now showing 1 - 6 of 6
  • Thumbnail Image
    Item type:Item,
    Reoxidation behavior of high-nitrogen oxynitride films after O-2 and N2O treatment
    (2005-05-01)
    Lin, BC
    ;
    Chang, KM
    ;
    Lai, CH
    ;
    Hsieh, KY
    ;
    Yao, JM
    Reoxidation of a high-nitrogen ultrathin oxynitride (similar to 1.3nm) has been studied. The reoxidation is conducted using an alternation of nitrous oxide and oxygen gas in rapid thermal oxidation (RTO). The new finding in this study is the zig-zag characteristic of the oxidation rate by O-2 and N2O. It is clear that the N2O oxidation rate is almost independent of the concentration of nitrogen in oxynitride through out the rapid thermal oxidation process, but the O2 oxidation rate is not.
  • Thumbnail Image
    Item type:Item,
    DSP-embedded UPS controller for high-performance single-phase on-line UPS systems
    (2002)
    Lai, CH
    ;
    Tzou, YY
    ;
    電控工程研究所
    ;
    Institute of Electrical and Control Engineering
    This paper proposes a DSP-controlled transformerless common-neutral single-phase on-line UPS with balanced charging/discharging control. All the control functions for an on-line UPS, which includes power-on start-up control, input stage power factor control, battery charging and boosting control, output stage ac voltage regulation, and shut-down control, were realized by using a single-chip DSP controller. A multiple rate digital controller generates all the PWM control signals for the power stage by using a set of detected feedback signals. Software current control scheme with nonlinear pulsewidth compensation has been developed to eliminate the nonlinearity caused by the dead-lock protected PWM converters. A nonlinear digital control scheme with lower switching frequency has been developed for the power factor control of the ac-dc converter. Computer simulation and experimental results have been given to verify the proposed digital control scheme. The constructed DSP-controlled UPS system can achieve fast dynamic response for nonlinear loads and high power factor under various loading conditions.
  • Thumbnail Image
    Item type:Item,
    Mining the change of events in environmental scanning for decision support
    (2004)
    Shih, MJ
    ;
    Liu, DR
    ;
    Liau, C
    ;
    Lai, CH
    ;
    資訊管理與財務金融系 註：原資管所+財金所
    An organization's environment is increasingly complex. Business demand on environmental scanning has significantly increased in recent years due to an attempt to assist management in planning an organization's strategies and responses. The conventional technique for environmental scanning is event detection from text documents such as news stories. Event detection methods recognize events while they neglect to discover the changes of events. This work develops an event change detection (ECD) approach that combines association rule mining and change mining techniques. Detecting changes of events aids managers in making fast responses to the change of external environments. Association rule mining is employed to discover the subject behaviors of events from news stories. Changes of events are identified by comparing the subject behaviors of events from different time periods. The discovered event changes can provide effective decision support for decision makers to capture environmental information in a timely manner and make adequate decisions.
  • Thumbnail Image
    Item type:Item,
    Very high kappa and high density TiTaO MIM capacitors for analog and RF applications
    (2005)
    Chiang, KC
    ;
    Chin, A
    ;
    Lai, CH
    ;
    Chen, WJ
    ;
    Cheng, CF
    For the first time, high density (10.3 fF/mu m(2)), low voltage linearity (alpha = 89 ppm/V-2) and small leakage current (1.2 x 10(-8) A/cm(2) or 5.8 fA/[pF circle V] at 2V) meet all the ITRS requirements of analog capacitor at year 2018. These are achieved by novel high-kappa TiTaO (kappa = 45) and high work-function Ir capacitor, which further improve to very high 23 fF/mu m(2) density and low 81 ppm/V-2 linearity for higher speed analog/RF ICs at 1 GHz, using the fast a decay mechanism with increasing frequency.
  • Thumbnail Image
    Item type:Item,
    Novel SiO2/AlN/HfAlO/IrO2 memory with fast erase, large triangle V-th and good retention
    (2005)
    Lai, CH
    ;
    Chin, A
    ;
    Chiang, KC
    ;
    Yoo, WJ
    ;
    Cheng, CF
    Using the strong trapping capability of novel AlN (kappa=10), low voltage drop in high-kappa layers and high workfunction IrO2 with low leakage current, the SiO2/AlN/HfAlO(K=17)/IrO2 device shows good 85 degrees C memory integrity of fast 100 is erase, large 3.7V Delta V-th and 1.9V extrapolated memory window for 10-year retention at low 13V program/erase. These increase to 5.5V Delta V-th and 3.4V for 85 degrees C 10-year retention at 1 ms erase.
  • Thumbnail Image
    Item type:Item,
    Reoxidation behavior of high-nitrogen oxynitride films after O(2) and N(2)O treatment
    (2005-05-01)
    Lin, BC
    ;
    Chang, KM
    ;
    Lai, CH
    ;
    Hsieh, KY
    ;
    Yao, JM
    Reoxidation of a high-nitrogen ultrathin oxynitride (similar to 1.3nm) has been studied. The reoxidation is conducted using an alternation of nitrous oxide and oxygen gas in rapid thermal oxidation (RTO). The new finding in this study is the zig-zag characteristic of the oxidation rate by O(2) and N(2)O. It is clear that the N(2)O oxidation rate is almost independent of the concentration of nitrogen in oxynitride through out the rapid thermal oxidation process, but the O2 oxidation rate is not.