Uncooled amorphous silicon 1⁄4 VGA IRFPA with 25 μm pixel-pitch for High End applications
نویسندگان
چکیده
The high level of accumulated expertise by ULIS and CEA/LETI on uncooled microbolometers made from amorphous silicon layer enables ULIS to develop 384 x 288 (1⁄4 VGA) IRFPA formats with 25 μm pixel-pitch designed for high end applications. This detector ROIC design relies on the same architecture as the full TV format ROIC one (detector configuration by serial link, user defined amplifier gain, windowing capability ...). The detector package is identical as the 384 x 288 / 35 μm and 640 x 480 / 25μm ones, enabling an easier system update or less non recurrent cost for different systems developments. This paper will give results of the IRFPA characterization. NETD in the range of 30mK (f/1, 300 K, 60 Hz) and operability higher than 99.99 % are routinely achieved.
منابع مشابه
Uncooled amorphous silicon TEC-less 1⁄4 VGA IRFPA with 25 μm pixel-pitch for high volume applications
The high level of accumulated expertise by ULIS and CEA/LETI on uncooled microbolometers made from an amorphous silicon layer enables ULIS to develop 384 x 288 (1⁄4 VGA) IRFPA format with 25 μm pixel-pitch designed for low end application. This detector has kept all the innovations developed on the full TV format ROIC (detector configuration by serial link, low power consumption or wide electri...
متن کاملUncooled IR focal plane arrays: worldwide review and state-of-the-art at ULIS
Uncooled infrared focal plane arrays are being developed for a wide range of thermal imaging applications. Developments are focused on improving the sensitivity to enable the possibility to manufacture high performance small pixel pitch detectors or radiometric detectors with internal “cold” shield. Commercial infrared is now a well-established business with several competitors. We review the s...
متن کاملAmorphous Silicon Flat Panel Imagers for Medical Application
A new gamma camera based on hydrogenated amorphous silicon (a-Si:H) pixel arrays to be used in nuclear medicine is introduced. Various performance characteristics of a-Si:H imagers are reviewed and compared with those of currently used equipment. An important component in the a-Si:H imager is the scintillator screen. A new approach for fabrication of high resolution CsI(Tl) scintillator layers,...
متن کاملSimulation of a Neutron Detector for Real Time Imaging Applications
Monte Carlo Method is used to simulate a double layer gadolinium-amorphous silicon thermal neutron detector. The detector fabricated in pixel array configuration has various applications including neutron imaging. According to the simulation results, a detector consisting of a gadolinium (Gd) film with thickness of 2-4 ~m, sandwiched properly with two layers of sufficiently thick (-30 ?µm) hydr...
متن کاملEmerging Trends in IRFPA Sensors
Significant developments have been taking place in the field of infrared sensors in recent years, to achieve higher resolution, wider spectral range, shorter response time and higher sensitivity (lower noise) in thermal imaging systems. Efforts are on to develop new technologies to produce infrared focal plane arrays (IR FPAs) with smaller pixel pitches, larger formats, higher frame rates, larg...
متن کامل