Title
Metal-oxide readout electronics based on Indium-Gallium-Zinc-Oxide and Indium-Tin-Zinc-Oxide for in-panel fingerprint detection application
Author
Papadopoulos, N.
Steudel, S.
Smout, S.
Willegems, M.
Nag, M.
Ameys, M.
Kronemeijer, A.J.
Heremans, P.
Myny, K.
Contributor
Fitzsimmons, K.J. (editor)
Publication year
2019
Abstract
This work describes integrated readout electronics for on-panel fingerprint detection, focusing on two key building blocks: charge sense amplifier (CSA) and analog-to-digital converter (ADC). The CSA has been realized in a dual-gate self-aligned IGZO thin-film transistor (TFT) technology with channel length downsizing to 3µm, enabling 1.3mm bezel size for the peripheral readout electronics and 1fps readout of a 1-Mpixel 500dpi sensor array. The ADC has been realized in two different transistor technologies, IGZO and Indium-Tin-Zinc-Oxide (ITZO). The ITZO ADC achieves a sampling rate of 1kS/s, which is 7.5x faster compared to the IGZO ADC, due to the larger mobility of ITZO.
Subject
ADC
CSA
IGZO
Imager
In-panel
ITZO
Readout
Sensor
TFT
To reference this document use:
http://resolver.tudelft.nl/uuid:e140e245-46e0-4e1c-857b-72e7d4b80f6f
DOI
https://doi.org/10.1002/sdtp.12863
TNO identifier
955191
Publisher
Blackwell Publishing Ltd
ISSN
0097-966X
Source
Digest of Technical Papers - SID International Symposium, SID Symposium, Seminar, and Exhibition 2019, Display Week 2019, 12 May 2019 through 17 May 2019, 95-98
Document type
conference paper