학술논문

Towards an infrared camera based on polymorphous silicon-germanium microbolometer arrays
Document Type
Conference
Source
2022 IEEE Latin American Electron Devices Conference (LAEDC) Electron Devices Conference (LAEDC), 2022 IEEE Latin American. :1-4 Jul, 2022
Subject
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Photonics and Electrooptics
Power, Energy and Industry Applications
Signal Processing and Analysis
Fabrication
Thermal resistance
Films
Cameras
Electron devices
Field programmable gate arrays
Silicon germanium
infrared
camera
silicon
germanium
microbolometers
arrays
Language
Abstract
In this work we report the development of different parts of an infrared camera, which includes the fabrication of a microbolometer array based on polymorphous silicon-germanium thermosensing films (pm-SiGe:H) with large values of the Thermal coefficient of resistance (TCR), as large as −6.6 %/K. The array is composed of 4800 pixels, distributed as 80 × 60, with each pixels of size of 50 × 50 μm 2 . As well the first stages of the readout circuit based on a FPGA is described, and the infrared filters lens design and the vacuum camera design also are shown.