상세정보
학술지
비정질 실리콘 기반의 비냉각형 16×16 적외선 초점면 배열의 개발
- 발행일
- 200907
- 출처
- 센서학회지, v.18 no.4, pp.301-306
- ISSN
- 1225-5475
- 출판사
- 한국센서학회
- 초록
- This paper describes the design and fabrication of 16×16 microbolometer infrared focal plane arrays based on iMEMS technology. Amorphous silicon was used for infrared-sensitive material, and it showed the resistance of 18 Mohm and the temperature coefficient of resistivity of ?2.4 %. The fabricated sensors exhibited responsivity of 78 kV/W and thermal time constant of 8.0 msec at a bias voltage of 0.5 V. The array performances had satisfactory uniformity less than 5 % within one-sigma. Also, 1/f noise of pixel was measured and the noise factor of 6×10-11 was extracted. Finally, we obtained detectivity of 1.27×109cmHz0.5/W and noise equivalent temperature difference of 200 mK at a frame rate of 30 Hz.
- KSP 제안 키워드
- 1/f Noise, Design and fabrication, Frame rate, Infrared Focal Plane Array(IRRPA), Noise factor, Thermal time constant(TTC), amorphous silicon, bias voltage, noise equivalent temperature difference, temperature coefficient of resistance(TCR)