New architecture for TECless operation of uncooled microbolometers developed at LETI

F. Simoens; M. Tchagaspanian; A. Arnaud; P. Imperinetti; G. Chammings; J. J. Yon; J. L. Tissot; Gérard Destefanis

doi:10.1117/12.757238

24 January 2008 New architecture for TECless operation of uncooled microbolometers developed at LETI

F. Simoens, M. Tchagaspanian, A. Arnaud, P. Imperinetti, G. Chammings, J. J. Yon, J. L. Tissot, Gérard Destefanis

Proceedings Volume 6835, Infrared Materials, Devices, and Applications; 683502 (2008) https://doi.org/10.1117/12.757238
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Thermal imaging market is today more and more attracted by systems with "instant-on" and low power consumption. "TECless" operation of uncooled microbolometer detectors, that is where no Peltier module is needed, is one of the major features required by the market. In order to fulfill this demand, LETI/SLIR is developing and optimizing a new IRCMOS architecture based on a differential reading implemented with current mirrors. This design simultaneously reduces focal plane temperature sensitivity and simplifies the detector driving. An IRCMOS prototype (320 × 240 with a pitch of 25 μm) has been designed, processed, and characterized. This paper presents an overall view of this new design and the latest characterization results of the prototype.

Citation Download Citation

F. Simoens, M. Tchagaspanian, A. Arnaud, P. Imperinetti, G. Chammings, J. J. Yon, J. L. Tissot, and Gérard Destefanis "New architecture for TECless operation of uncooled microbolometers developed at LETI", Proc. SPIE 6835, Infrared Materials, Devices, and Applications, 683502 (24 January 2008); https://doi.org/10.1117/12.757238

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