Foldable Window Etching Layout for Selective Thickness Control
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Solution Overview
Problem
Existing etching technologies struggle to produce foldable windows with reliable structural integrity and efficient manufacturing processes.
Innovation Solution
An etching device with a stage and nozzle configuration that utilizes deionized water and etchants to form foldable windows by controlling fluid flow angles and concentrations, allowing for precise etching of folding and non-folding portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional etching technology is used, then the manufacturing process is simple, but the structural integrity and reliability of foldable windows cannot be ensured
Solution Approach 1:
The etching device divides the substrate into distinct folding portions and non-folding portions through selective etching. Multiple nozzles are positioned at different locations to etch specific regions with different depths, creating the segmented structure required for foldable windows with proper structural integrity.
Solution Approach 2:
The device applies different etching conditions to different regions of the substrate. The folding portions are etched to different depths than non-folding portions, creating local variations in thickness and structure that enable folding while maintaining overall reliability. This is achieved through multiple nozzles with different etchant delivery parameters.
2Reliability
If complex etching processes are used to ensure reliability, then structural integrity improves, but the manufacturing process becomes complicated
Solution Approach 1:
The etching device combines multiple etching operations into a single integrated process. Multiple nozzles operate simultaneously on different portions of the substrate, achieving complex selective etching patterns in one step rather than through multiple sequential processes, thereby maintaining ease of manufacture while ensuring reliability.
Solution Approach 2:
The etching device performs multiple functions through a single system: it etches both folding and non-folding portions, controls different etching depths, and creates the complete foldable window structure. This multi-functionality simplifies the manufacturing process by eliminating the need for multiple separate etching steps.
3Adaptability or versatility
If selective etching of folding and non-folding portions is performed, then foldable characteristics are achieved, but the device complexity increases
Solution Approach 1:
The nozzle system is segmented into multiple nozzles positioned at different locations, each responsible for etching specific portions of the substrate. This segmentation enables selective etching of folding and non-folding portions while keeping each nozzle's function simple and manageable.
Solution Approach 2:
The device uses fluid delivery through nozzles to achieve selective etching. By controlling the position and operation of multiple nozzles, the system creates the foldable characteristics through hydraulic/pneumatic means rather than complex mechanical structures, reducing overall device complexity.
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
The solution enables the production of foldable windows with improved reliability and structural integrity through a simplified manufacturing process.
Implementation Method 1
Each of the (1-1)-th nozzle and the (1-2)-th nozzle provides deionized water toward the first side, and the (2-1)-th nozzle provides a first etchant toward the first side
Data Source
AI summary
An etching device includes a stage on a target substrate, and a nozzle part opposing the stage with the target substrate therebetween. The stage includes a first surface parallel to a plane defined by a first direction and a second direction crossing the first direction, and a second surface parallel to a third direction which forms a first angle with the second direction, and the second surface includes a first side parallel to the first direction, and a second side opposing the first side in the third direction and adjacent to the first surface. The nozzle part includes a (1-1)-th nozzle, a (1-2)-th nozzle spaced apart from the (1-1)-th nozzle in the first direction, and a (2-1)-th nozzle disposed between the (1-1)-th nozzle and the (1-2)-th nozzle.