Process for obtaining semiconductor nanodevices with patterned metal-oxide thin films deposited onto a substrate, and semiconductor nanodevices thereof
OwnerOlivier Soppera, Hsiao-Wen Zan +6inventors
InventorsOlivier Soppera, Hsiao-Wen Zan, Hung-Cheng Lin, Chang-Hung Li, Fabrice Stehlin, Arnaud Spangenberg, Fernand Wleder, Chung-Chen Yeh
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Abstract
Processes for obtaining a semiconductor nanodevice comprising a substrate, onto which patterned metal-oxide thin films having semiconductor properties are deposited, are provided, as well as semiconductor devices comprising them. The present invention belongs to the field of semiconductor nanodevices.
Claims16
A process for obtaining a semiconductor nanodevice comprising a substrate onto which patterned metal-oxide thin films having semiconductor properties are deposited, said process comprising the steps of:
- preparing a metal oxide chelate solution by complexing metal oxide precursors with a ligand in an alcoholic solvent for obtaining a metal oxide chelate;
- wherein the ligand is methacrylic acid;
- and wherein the metal oxide precursors comprise metal elements selected from the group consisting of zirconium (Zr), titanium (Ti), zinc (Zn), and mixtures thereof;
- preparing a metal oxo-cluster solution by submitting the metal oxide chelate solution to water hydrolysis, for obtaining a partially-condensed metal oxide chelate;
- preparing a doped-metal oxide solution by doping the metal oxo-cluster solution with a doping material comprising a metal element;
- depositing the doped-metal oxide solution onto a substrate, for obtaining a substrate coated with a metal oxide thin film;
- patterning the coated substrate by irradiating it with deep ultra-violet (DUV) wavelengths, for obtaining a patterned coating;
- wherein the coated substrate is irradiated via a laser emitting DUV wavelengths;
- immersing the substrate comprising a patterned coating into a development media, for obtaining a developed patterned substrate;
- post-annealing the developed patterned substrate, for obtaining a fully inorganic patterned substrate.
Dependencies are inferred from the claim text.