Substrate Firing Device Quartz Support Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In substrate firing devices, the point contact between substrates and support portions leads to scratches during temperature changes, which can degrade the quality of flat panel display devices by causing irreversible damage during the firing process.
Innovation Solution
The substrate firing device increases the contact area between the substrate and support portions by using quartz-made first and second support structures, with the first support portions having a support frame and protruding pins, and the second support portions being in contact with the substrate's edge, arranged to distribute the load evenly and prevent scratches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If point contact support portions are used to support substrates, then the substrate can be supported during firing, but scratches are generated on the substrate during temperature changes
Solution Approach 1:
The invention transitions from point contact (0D) to line contact (1D) by changing the support portion geometry from pins to bars that extend along the substrate edge, increasing the contact dimension and distributing stress to prevent scratches
Solution Approach 2:
The support structure is divided into multiple segments: first support portions (pins) for initial support and second support portions (bars) for edge support, with each segment serving a specific function in the load distribution system
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 configuration prevents scratches on the substrate during temperature fluctuations, ensuring the quality of the final product by maintaining a uniform temperature and reducing the risk of damage during the firing and subsequent etching processes.
Implementation Method 1
a heating portion to heat a substrate to a firing temperature by supplying heat into the firing furnace
Implementation Method 2
contraction or expansion of the substrates that occurs when the temperature in the substrate firing device rises and falls
Data Source
AI summary
A substrate firing device having an increased contact area between the substrate and substrate support portions, thereby preventing the substrate support portions from generating scratches on the substrate when the substrate expands and contracts due to heating and cooling. By increasing the contact area to the substrate and by using quartz on items that contact the substrate, it is possible to prevent scratches occurring on a substrate, even after an etching process of the substrate, thereby improving quality of the slimmer final product.