Glass Functional Layer Deposition Using Carrier-Gas Mist Feed

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Solution Overview

Problem

Conventional methods for forming functional layers on glass plates are limited by the necessity of using gaseous raw materials, restricting the types of functional layers that can be applied.

Innovation Solution

A method and device that utilize a mist substance, such as a solution or dispersion of a raw material, conveyed by a carrier gas to form functional layers on glass plates, allowing for a broader range of applicable materials and enabling formation through mist chemical vapor deposition (CVD).

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a gaseous raw material is used to form a functional layer on a glass plate, then the functional layer can be formed with conventional CVD methods, but the scope of applicable raw materials is limited

Engineering Contradiction:

Improvescope of applicable raw materialsVSAvoidraw material preparation complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The invention changes the physical state parameter of the raw material from gas to liquid/mist form. By using a mist substance (liquid or dispersion) instead of gaseous raw materials, the patent expands the scope of applicable raw materials while maintaining compatibility with CVD processing conditions. The mist substance is conveyed and supplied in a liquid state, fundamentally altering the material delivery parameter.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention introduces a carrier gas as an intermediary substance to convey the mist material from the storage container to the deposition region. The carrier gas (such as nitrogen or oxygen) acts as a medium that transports the liquid/mist raw material without requiring the raw material itself to be in gaseous form, thus expanding material versatility while maintaining process control.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a mist substance is used instead of gaseous raw material, then the scope of applicable substances is expanded, but additional equipment for mist generation and conveyance is required

Engineering Contradiction:

Improvetypes of functional layers that can be formedVSAvoidmist substance supply system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The supply device is designed to perform multiple functions: storing the mist substance, generating the mist, conveying it via carrier gas, and controlling its supply to the deposition region. By integrating these functions into a single supply device, the patent reduces overall system complexity despite the adoption of mist-based materials.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention employs pneumatic principles using a carrier gas to convey the mist substance through the supply system. The carrier gas flow serves dual purposes: transporting the mist material and providing a controlled atmosphere for deposition. This pneumatic conveyance method simplifies the system compared to alternative mist delivery mechanisms.

Inventive Principle:

Principle #29Pneumatics and hydraulics

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

Expands the scope of available raw materials for functional layers, enabling uniform and efficient formation of various functional films and layers on glass plates, including transparent conductive films, absorbing films, and semiconductor layers.

Implementation Method 1

conveying a mist substance for forming a functional layer to a position facing a first main surface with use of a carrier gas

Methodology Applied

Scientific EffectAerosol: Aerosol

Implementation Method 2

a mist that is made from a solution of the substance or a liquid obtained by dispersing powder of the substance therein

Methodology Applied

Scientific EffectDispersion: Dispersion (of waves)

Implementation Method 3

forming the functional layer on the first main surface through mist chemical vapor deposition (CVD)

Methodology Applied

Scientific EffectChemical Vapour Deposition: Chemical Vapour Deposition

Data Source

PatentUS20260001806A1Method for manufacturing glass plate including functional layer and functional layer forming device

Publication Date: 2026.01.01 NIPPON SHEET GLASS CO LTD

AI summary

There is demand for a method and a device that can increase types of functional layers that can be formed on a glass plate by expanding the scope of applicable raw materials. A method for manufacturing a glass plate including a functional layer in which the functional layer is formed on a first main surface of the glass plate including the first main surface and a second main surface, the method including: a preparation step (#21) of preparing the glass plate; a conveying step (#22) of conveying a mist substance for forming the functional layer to a position facing the first main surface with use of a carrier gas; a supplying step (#24) of supplying the mist substance from the position facing the first main surface toward the first main surface; and a functional layer forming step (#25) of forming the functional layer on the first main surface.