• Title/Summary/Keyword: Module technology

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Fabrication of AlN Thin Film by Reactive RF Magnetron Sputtering and Sensing Characteristics of Oil Pressure (반응성 RF 마그네트론 스퍼터링에 의한 AlN 박막 제조 및 유압 감지 특성)

  • Seok, Hye-Won;Kim, Sei-Ki;Kang, Yang-Koo;Hong, Yeon-Woo;Lee, Young-Jin;Ju, Byeong-Kwon
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.27 no.12
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    • pp.815-819
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    • 2014
  • Aluminum nitride (AlN) thin film and TiN film as a buffer layer were deposited on INCONEL 600 substrate by reactive RF magnetron sputtering at room temperature(R.T.) under 25~75% $N_2/Ar$ atmosphere. The as-deposited AlN films at 25~50% $N_2/Ar$ showed a polycrystalline phase of hexagonal AlN, and an amorphous phase. The peak of AlN (002) plane, which was determinant on a performance of piezoelectric transducer, became strong with increasing the $N_2/Ar$ ratio. Any change in the preferential orientation of the as-deposited AlN films was not observed within our $N_2$ concentration range. The piezoelectric sensing properties of AlN module were performed using pressure-voltage measurement system. The output signal voltage of AlN module showed a linear behavior between 20~80 mV in 1~10 MPa range, and the pressure-sensing sensitivity was calculated as 3.6 mV/MPa.

A Design of SNS and Web Data Analysis System for Company Marketing Strategy (기업 마케팅 전략을 위한 SNS 및 Web 데이터 분석 시스템 설계)

  • Lee, ByungKwan;Jeong, EunHee;Jung, YiNa
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.6 no.4
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    • pp.195-200
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    • 2013
  • This paper proposes an SNS and Web Data Analytics System which can utilize a business marketing strategy by analyzing negative SNS and Web Data that can do great damage to a business image. It consists of the Data Collection Module collecting SNS and Web Data, the Hbase Module storing the collected data, the Data Analysis Module estimating and classifying the meaning of data after an semantic analysis of the collected data, and the PHS Module accomplishing an optimized Map Reduce by using SNS and Web data involved a Businesse. This paper can utilize this analysis result for a business marketing strategy by efficiently managing SNS and Web data with these modules.

Efficient Decoupling Capacitor Optimization for Subsystem Module Package

  • Lim, HoJeong;Fuentes, Ruben
    • Journal of the Microelectronics and Packaging Society
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    • v.29 no.1
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    • pp.1-6
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    • 2022
  • The mobile device industry demands much higher levels of integration and lower costs coupled with a growing awareness of the complete system's configuration. A subsystem module package is similar to a board-level circuit that integrates a system function in a package beyond a System-in-Package (SiP) design. It is an advanced IC packaging solution to enhance the PDN and achieve a smaller form factor. Unlike a system-level design with a decoupling capacitor, a subsystem module package system needs to redefine the role of the capacitor and its configuration for PDN performance. Specifically, the design of package's form factor should include careful consideration of optimal PDN performance and the number of components, which need to define the decoupling capacitor's value and the placement strategy for a low impedance profile with associated cost benefits. This paper will focus on both the static case that addresses the voltage (IR) drop and AC analysis in the frequency domain with three specific topics. First, it will highlight the role of simulation in the subsystem module design for the PDN. Second, it will compare the performance of double-sided component placement (DSCP) motherboards with the subsystem module package and then prove the advantage of the subsystem module package. Finally, it will introduce three-terminal decoupling capacitor (decap) configurations of capacitor size, count and value for the subsystem module package to determine the optimum performance and package density based on the cost-effective model.

차세대 위성용 탑재컴퓨터 설계

  • Kwon, Ki-Ho;Kim, Day-Young;Choi, Seung-Woon;Lee, Yun-Ki;Lee, Jong-In;Kim, Hak-Jung
    • Aerospace Engineering and Technology
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    • v.4 no.2
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    • pp.79-87
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    • 2005
  • This paper describes a new on-board computer design for the next generation satellite. The new on-board computer utilizes centralized processing architecture with MCMERC325C CPU based on functional modular design concepts. The on-board computer consists of PM32 Module, TC-TM Module, IO Module and Power module. The IEEE-1355 DS/DE, or SpaceWire, provides a standard communication interface between module. It also provides simple cross-strap design for redundancy management and increases re-usability of the modules.

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A study on the Frequency Synthesizer for Dual-Band Repeater (이중대역 중계기를 위한 주파수합성기의 설계에 관한 연구)

  • Kim, Jin-Sub;Byeon, Sang-Gi;Kang, Yong-Cheol
    • Proceedings of the IEEK Conference
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    • 2005.11a
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    • pp.277-280
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    • 2005
  • In this paper, we propose a frequency synthesizer for dualband repeater. The dual-band RF technology for applications to the wireless repeater for CDMA and WCDMA mobile communications has been developed in this paper. The dualband PLL module consisted of dual-band VCO and one PLL IC has been developed. The main technological efforts for the dual-band PLL module is to suppress the intermodulation distortion by applying the miniature ceramic filter using the slow wave characteristics. The dual-band miniature RF module including dual-band PLL module and one MCU controller is very attractive for applications to the miniature dual-band RF mobile repeaters.

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A study on F8L10D-N LoRa RF Module for Drone Based live Broadcasting system

  • Mfitumukiza, Joseph;Mariappan, Vinayagam;Lee, Minwoo;Cho, Juphil;Cha, Jaesang
    • International Journal of Advanced Culture Technology
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    • v.4 no.4
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    • pp.1-5
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    • 2016
  • In this paper, we present the study on the proposed design of a real-time transmission of a video from the drone to broadcasting station (OBVan) by using F8L10D-N LoRa Module. Nowadays, LoRa technology is proved to be the mass of low cost, long range machine-to-machine connectivity. Particularly in the field of broadcasting and communication system, F8L10D-N LoRa RF Module spread spectrum technology with long transmission distance and strong penetrative ability that is double stronger than traditional FSK as well as PSK modulation scheme.

The Effect of Sealing Technology on the Long-Term Stability of Dye-Sensitized Solar Cell Module (염료감응 태양전지 모듈의 장기안정성 향상을 위한 실링기술 연구)

  • Lee, Kwangsoo;Ko, Min Jae
    • Current Photovoltaic Research
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    • v.4 no.4
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    • pp.155-158
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    • 2016
  • Long-term stability of dye-sensitized solar cell (DSSC) module is critical for the commercialization. We investigated the effect of sealing technology on the long-term stability of the $10cm{\times}11cm$ sized DSSC modules. We applied the concept of secondary sealing to the module and then performed several stability tests such as humidity cycle, 1 sun light soaking and outdoor stability tests. The enhanced stability was confirmed for the DSSC module employing optimized sealing materials and architectures.

The analysis of monoblock characteristics in ceramic VCO (세라믹 VCO 내 Block 특성 분석)

  • Yoo, Joshua;Kim, Erick;Lee, Y.S.;Lee, W.S.
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2003.05c
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    • pp.269-272
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    • 2003
  • Nowadays, the study on the ceramic components and modules using LTCC is being performed and on the passives included in modules is being done also. But the characteristics of passives changes in ceramic module due to the coupling between patterns, so each block in module must be analyzed in the state of module including coupling factors. In our research each block of VCO, resonator part, oscillator part, output part is measured and analyzed and that allows the prediction of behavior of VCO.

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Bonding of Different Materials Using Common Glass in Zero Shrinkage LTCC (공통의 Glass를 이용한 LTCC 이종소재의 무수축 접합)

  • Jang, Ui-Kyeong;Shin, Hyo-Soon;Yeo, Dong-Hun;Kim, Jong-Hee
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2006.06a
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    • pp.298-299
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    • 2006
  • 공통의 glass를 이용한 LTCC 이종소재의 무수축 접합 가능성을 확인하기 위하여 2종의 상용 glass를 이용하여 소결온도를 변화시키면서 미세구조 및 결정구조, x-y축 방향의 수축율을 관찰하였다. 실험 결과 GA-12 glass는 강유전체 $BaTiO_3$와 glass의 composite개념을 이용한 접합에 적절하지 않은 것으로 판단되었으며, GA-1 glass의 경우는 $750^{\circ}C$$800^{\circ}C$ 사이에서 glass의 충분한 침투조건이 확인되며, 결정구조 에서도 glass/$BaTiO_3$ composite이 형성되므로 layer 간의 delamination은 발견되지만 x-y축 방향의 무수축 접합의 가능성이 확인되었다.

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A Case Study on Designs of Base Module for Modular Road System (모듈러 도로시스템 적용을 위한 지지구조 모듈의 설계사례 연구)

  • Lee, Juhyung;Baek, Duhyun;Kim, Donggyou
    • Journal of the Korean GEO-environmental Society
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    • v.14 no.11
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    • pp.47-54
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    • 2013
  • This study is the basic research to develop the customized base module for modular road system. A case study was carried out on designs of base module for soft soil condition. Two types of base module was proposed; crossbeam module and crossbeam-pile module. Based on the case study, it was verified crossbeam-pile module is suitable for soft soil condition and the optimum dimension of crossbeam-pile module for modular road system constructed on soft soil was determined. For development of the optimal base modular for modular road system, it is needed in the future to build a data base about ground and roadbed of road construction sites and to classify and systemized base modules according to soil conditions through many case studies.