Transparent Current Mirrors With a-GIZO TFTs: Neural Modeling, Simulation and Fabrication

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Date
2013
Authors
Bahubalindruni,PG
Vítor Grade Tavares
Barquinha,P
Manuel Cândido Santos
de Oliveira,PG
Martins,R
Fortunato,E
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Abstract
This paper characterizes transparent current mirrors with n-type amorphous gallium-indium-zinc-oxide (a-GIZO) thin-film transistors (TFTs). Two-TFT current mirrors with different mirroring ratios and a cascode topology are considered. A neural model is developed based on the measured data of the TFTs and is implemented in Verilog-A; then it is used to simulate the circuits with Cadence Virtuoso Spectre simulator. The simulation outcomes are validated with the fabricated circuit response. These results show that the neural network can model TFT accurately, as well as the current mirroring ability of the TFTs.
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