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한영원(Y.W.Hahn),곽대영(D.Y.Kwak),임용택(Y.T.Im) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.6_2
In order to substitute steel for new material in fabrication of automotive hood, proper stiffness according to the constructed geometry should be guaranted. For this purpose, numerical analyses of self-weight deflection, oil canning test, and torsional deflection were carried out using steel and SMC (Sheet Molding Compound). For optimization of manufacturing cost and structural benefit, several geometries were considered for the arbitrarily selected hood design type. The current approach will be beneficial in determining the proper design parameters for fabrication of hood with new material such as composites or aluminium alloys.<br/>
비냉각 적외선 열상장비용 CMOS Readout IC 설계
한석룡,윤동한,강대석,박재우,송성해,신경욱,우회구,윤태준,이상돈 金烏工科大學校 1998 論文集 Vol.19 No.-
A CMOS readout circuit for uncooled infrared Focal Plane Array (FPA) deteftor is presented, which is a key component in InfraRed (IR) imaging systems. The designed readout circuit satisfies various design requirements and constraints such as impedance matching, low noise, large dynamic range, low power dissipation and small pitch size. For impedance matching between the detector and preamplifier, a new circuit based on MOS diode structure with variable substrate biasing is devised. Also, tunable low pass filter with single-pole is used to suppress high frequency noise. In addition, a clamp circuit is used to enhance the signal-pole is used to suppress high frequency noise. In addition, a clamp circuit is used to enhance the signal-to-noise ratio of the readout output signals. A prototype 64×64 ROIC is designed using 0.65-㎛ 2P3M (double poly, tripple metal) N-Well CMOS process. It contains 62,000 devices including transistors, capacitors and resistors on an area of about 6.3×6.7㎟.