Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer
It is demonstrated for the first time that the Wheatstone bridge structured metal thin film resistive uncooled microbolometer (in short, WB-bolometer) provides promising temperature sensitivity. This paper describes the design, simulation, and characterization of WB-bolometer using titanium nitride...
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sg-ntu-dr.10356-1067372019-12-06T22:17:17Z Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer Ang, Wan Chia Kropelnicki, Piotr Tsai, Julius Ming Lin Leong, Kam Chew Tan, Chuan Seng School of Electrical and Electronic Engineering International Conference on Materials for Advanced Technologies (ICMAT) (7th : 2013) DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films It is demonstrated for the first time that the Wheatstone bridge structured metal thin film resistive uncooled microbolometer (in short, WB-bolometer) provides promising temperature sensitivity. This paper describes the design, simulation, and characterization of WB-bolometer using titanium nitride (TiN) thin film as the infrared (IR) sensing material. TiN thin film is designed into four resistors which are connected to each other in Wheatstone bridge configuration. The resistance value of each resistor changes with different rates upon IR absorption, which can be attributed to the difference in their associated thermal conductance. As a result, the bridge output voltage varies in response to the absorbed IR power. Simulation was employed to compare and characterize different designs of WB-bolometer. It was found that design with two sensing elements has the optimum performance. The proposed WB-bolometer is also capable of operating at elevated temperatures (> 250 oC) due to its adjustable and small initial offset voltage with minimum associated noise. Published version 2015-02-24T07:08:20Z 2019-12-06T22:17:17Z 2015-02-24T07:08:20Z 2019-12-06T22:17:17Z 2014 2014 Conference Paper Ang, W. C., Kropelnicki, P., Tsai, J. M. L., Leong, K. C., & Tan, C. S. (2014). Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer. Procedia engineering, 94, 6-13. https://hdl.handle.net/10356/106737 http://hdl.handle.net/10220/25084 http://dx.doi.org/10.1016/j.proeng.2013.10.013 en Procedia Engineering © 2014 Chuan Seng Tan. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). application/pdf |
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DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films Ang, Wan Chia Kropelnicki, Piotr Tsai, Julius Ming Lin Leong, Kam Chew Tan, Chuan Seng Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer |
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It is demonstrated for the first time that the Wheatstone bridge structured metal thin film resistive uncooled microbolometer (in short, WB-bolometer) provides promising temperature sensitivity. This paper describes the design, simulation, and characterization of WB-bolometer using titanium nitride (TiN) thin film as the infrared (IR) sensing material. TiN thin film is designed into four resistors which are connected to each other in Wheatstone bridge configuration. The resistance value of each resistor changes with different rates upon IR absorption, which can be attributed to the difference in their associated thermal conductance. As a result, the bridge output voltage varies in response to the absorbed IR power. Simulation was employed to compare and characterize different designs of WB-bolometer. It was found that design with two sensing elements has the optimum performance. The proposed WB-bolometer is also capable of operating at elevated temperatures (> 250 oC) due to its adjustable and small initial offset voltage with minimum associated noise. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Ang, Wan Chia Kropelnicki, Piotr Tsai, Julius Ming Lin Leong, Kam Chew Tan, Chuan Seng |
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Conference or Workshop Item |
author |
Ang, Wan Chia Kropelnicki, Piotr Tsai, Julius Ming Lin Leong, Kam Chew Tan, Chuan Seng |
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Ang, Wan Chia |
title |
Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer |
title_short |
Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer |
title_full |
Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer |
title_fullStr |
Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer |
title_full_unstemmed |
Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer |
title_sort |
design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer |
publishDate |
2015 |
url |
https://hdl.handle.net/10356/106737 http://hdl.handle.net/10220/25084 http://dx.doi.org/10.1016/j.proeng.2013.10.013 |
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