Title :
Multipliers with transparent a-GIZO TFTs using a neural model
Author :
Bahubalindruni, G. ; Duarte, Candido ; Tavares, Vitor G. ; Barquinha, Pedro ; Martins, Rui P. ; Fortunato, Elvira ; de Oliveira, Pedro Guedes
Author_Institution :
Fac. of Eng., Univ. of Porto, Porto, Portugal
Abstract :
This paper presents the results of a preliminary study to examine the ability of post-silicon devices for analog processing. It is focused on the latest thin-film transistors (TFTs) with amorphous gallium-indium-zinc oxide (a-GIZO) as active layer. Three circuit configurations are presented: a differential pair and two multiplier topologies. Both triode and saturation regions of operation are included in the analysis, with the devices set to remain in strong accumulation. A neural model, which is developed based on the measured data of the TFTs, is used for the circuit simulations in the Cadence Virtuoso environment. The analog multipliers simulation results are compared against the expected functional results.
Keywords :
III-V semiconductors; amorphous semiconductors; differential amplifiers; gallium compounds; indium compounds; multiplying circuits; thin film transistors; zinc compounds; Cadence Virtuoso environment; GaInZnO; active layer; analog multipliers; analog processing; circuit simulations; differential pair; neural model; post-silicon devices; saturation region; thin-film transistors; transparent amorphous TFT; triode region; Artificial neural networks; Data models; Integrated circuit modeling; Linearity; Mathematical model; Thin film transistors; a-GIZO TFTs; multipliers; neural models;
Conference_Titel :
Telecommunications Forum (TELFOR), 2012 20th
Conference_Location :
Belgrade
Print_ISBN :
978-1-4673-2983-5
DOI :
10.1109/TELFOR.2012.6419367
