Exposure Device Protrusions Manage Airflow and Heat
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing digital exposure devices face challenges in suppressing heat generation and maintaining stability while forming precise patterns on substrates without the use of photomasks, particularly as substrates grow larger and patterns become more intricate.
Innovation Solution
The exposure device incorporates a chamber with first and second protrusions on the support and inner wall, respectively, to overlap and alternate, along with a partition wall, to manage airflow and cooling, reducing airflow between spaces and minimizing temperature deviations, thereby reducing heat generation and improving pattern precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a digital exposure device is used to form patterns without photomasks, then manufacturing precision is improved, but heat generation increases causing instability
Solution Approach 1:
The chamber is divided into a first space for accommodating the exposure head and a second space for accommodating the stage, separated by a partition wall. This segmentation isolates the heat-generating exposure head from the pattern formation area, allowing independent temperature control and reducing heat-induced instability in the pattern formation process.
Solution Approach 2:
Protrusions are introduced as intermediary structures between the exposure head and the chamber wall. These protrusions create gaps that facilitate airflow and heat dissipation pathways, acting as thermal mediators to reduce heat accumulation in the exposure head while maintaining stable pattern formation conditions.
2Temperature
If the chamber is divided into separate spaces for exposure head and stage, then temperature control is improved, but device complexity increases
Solution Approach 1:
The chamber is segmented into a first space for the exposure head and a second space for the stage using a partition wall. This simple segmentation achieves effective temperature control by isolating the heat source from the pattern formation area, while the modular design keeps the overall structure manageable and not excessively complex.
3Loss of energy
If protrusions are added to manage airflow, then heat generation is suppressed, but manufacturing complexity increases
Solution Approach 1:
Protrusions are added as intermediary structures between the exposure head and the chamber wall to manage airflow and suppress heat generation. These protrusions create controlled gaps that facilitate air circulation without requiring complex cooling systems, maintaining ease of manufacture while effectively reducing heat accumulation.
Solution Approach 2:
The protrusions modify the physical parameters of the chamber by creating gaps and changing airflow patterns. This simple geometric modification effectively alters heat dissipation characteristics and suppresses heat generation without requiring complex manufacturing processes or additional components.
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 effectively suppresses heat generation and stabilizes pattern formation on substrates, enhancing precision and preventing distortion, even on larger substrates with complex patterns.
Implementation Method 1
a first air conditioner that may supply first air to the first space of the chamber from outside the chamber
Implementation Method 2
a second air conditioner that may supply second air to the second space of the chamber from outside the chamber
Data Source
AI summary
An exposure device may include an exposure head that may radiate an exposure beam onto a substrate on a stage, a support that may be provided on the stage to support the exposure head, a chamber that may accommodate the stage, the exposure head, and the support. The exposure device may include first protrusions that may be disposed on an outer circumference of the support adjacent to an inner wall of the chamber, and second protrusions that may be disposed on the inner wall of the chamber surrounding the outer circumference of the support. The first and second protrusions may overlap each other in a plan view.