Binary-Oxide Vapor Source for Lower-Energy Oxide Deposition
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Solution Overview
Problem
Existing oxide deposition processes are energy-intensive due to the need for generating activated forms of oxygen, limiting their scalability.
Innovation Solution
A method and system for generating binary-oxide vapor precursors by heating an elemental component in a vessel with a contained aggregate structure of solid binary-oxide members, allowing the elemental vapor to react and form binary-oxide vapor precursors efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If activated forms of oxygen (oxygen plasma, ozone, atomic oxygen) are used to form oxide layers, then oxide deposition can be achieved, but energy consumption increases significantly
Solution Approach 1:
The patent applies preliminary action by pre-forming binary-oxide solid members containing activated oxygen atoms before the deposition process. These solid members are then heated to release binary-oxide vapor precursors that already contain the activated oxygen, eliminating the need to generate activated oxygen forms during the deposition process itself. This pre-preparation of oxygen-containing compounds resolves the energy consumption issue while maintaining reliable oxide layer formation.
2Reliability
If traditional oxide deposition processes are used with activated oxygen forms, then oxide layers can be deposited, but scalability is limited due to high energy requirements
Solution Approach 1:
The patent changes the physical and chemical parameters of the deposition process by using binary-oxide vapor precursors instead of requiring high-energy activated oxygen forms. The solid binary-oxide members are heated to controlled temperatures to release vapor precursors, transforming the process from one requiring high-energy plasma or atomic oxygen to a lower-energy thermal vaporization process. This parameter change enables scalable deposition while maintaining reliable oxide layer formation.
3Productivity
If elemental component is heated to form vapor, then binary-oxide vapor precursor can be generated, but precise control of vapor composition and reaction is required
Solution Approach 1:
The patent uses binary-oxide solid members as an intermediary between the elemental component and the final oxide layer. The elemental component reacts with the binary-oxide solid members during heating to form binary-oxide vapor precursors. This intermediary approach simplifies control because the binary-oxide solid members act as a buffer that regulates the reaction, ensuring consistent vapor composition without requiring complex real-time control mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces energy consumption and enables scalable oxide deposition processes by utilizing a binary-oxide vapor source that produces precursors effectively, facilitating the formation of oxide layers on substrates.
Implementation Method 1
heating the elemental component to form an elemental vapor that travels towards the open end of the open-ended vessel
Implementation Method 2
on transiting towards the open end the elemental vapor reacts with the contained aggregate structure of the solid binary-oxide members to generate a binary-oxide vapor precursor
Implementation Method 3
spaces adjacent to the solid binary-oxide members through which the elemental vapor can pass
Data Source
AI summary
The techniques described herein relate to a method for generating a binary-oxide vapor precursor for a deposition process including: providing a binary-oxide vapor source; heating the binary-oxide vapor source to form an elemental vapor from an elemental component contained therein; and reacting the elemental vapor with solid binary-oxide members contained therein. The binary-oxide vapor source can include: a closed end and an open end; a first region located adjacent to the closed end including the elemental component; and a second region located between the first region and the open end, the second region including a contained aggregate structure including the solid binary-oxide members and spaces through which a vapor can pass. In some aspects, the techniques described herein relate to a material deposition system including the binary-oxide vapor source coupled to a growth chamber.