Fluorinated metal-amidrazonide complexes and method of using the same for deposition of metal-containing thin films

Fluorinated metal-amidrazonide precursors with the formula M-[EC(CaFbHc)=N-NR1R2]x[D]y[R3]z enable efficient and uniform deposition of metal-containing films, overcoming the limitations of existing techniques by providing thermal stability and cleaner processes.

WO2026147669A1PCT designated stage Publication Date: 2026-07-09LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE +1

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
Filing Date
2025-12-12
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

Current thin-film deposition techniques face challenges with high corrosiveness, toxicity, greenhouse gas emissions, poor uniformity, and narrow process windows due to the use of fluorine-containing precursors, particularly in the deposition of metal-containing films.

Method used

The use of fluorinated metal-amidrazonide precursors with the general formula M-[EC(CaFbHc)=N-NR1R2]x[D]y[R3]z for vapor deposition methods, including CVD and ALD, to form metal-containing films, which are thermally stable and volatile, addressing issues of chemisorption and process control.

Benefits of technology

This approach provides a cleaner, more uniform deposition process with improved thermal stability and wider process windows, enabling the formation of high-quality metal-containing films suitable for electronics, optics, and energy applications.

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Abstract

A method for forming a metal-containing film on a substrate comprises: exposing the substrate to a vapor of a metal-containing film-forming composition that contains a fluorinated metal-amidrazonide precursor; and depositing at least part of the fluorinated metal-amidrazonide precursors onto the substrate to form the metal-containing film on the substrate through a vapor deposition method, wherein the fluorinated metal-amidrazonide precursor having the general formula
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