Anodic Oxide Film Repair for Hole Defect Yield Recovery
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Solution Overview
Problem
The production yield of anodic oxide film structures is reduced due to hole defects during the manufacturing process, where small defects are treated as defects of the mother plate, leading to discarding otherwise usable material.
Innovation Solution
A manufacturing method that tests for defective regions in anodic oxide film plates and repairs them by replacing defective divided plates, cutting out and replacing partial regions, or filling through-holes with a material, thereby making the defective regions normal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mother plate is discarded due to small hole defects, then the reliability of the product is improved, but the productivity is significantly reduced
Solution Approach 1:
The mother plate is divided into multiple divided plates, allowing selective replacement of only the defective portion rather than discarding the entire plate. This segmentation enables localized repair while preserving the majority of usable material.
Solution Approach 2:
The defective region is identified and treated locally through targeted replacement or filling operations. Only the specific defective area is modified, while the rest of the mother plate maintains its original quality and is reused.
2Manufacturing precision
If the entire mother plate is replaced due to defects, then the manufacturing precision is improved, but the loss of substance increases
Solution Approach 1:
The defective divided plate or partial region is extracted and removed from the mother plate. This allows the defective portion to be replaced with a new component while the remaining healthy material is retained and reused.
Solution Approach 2:
Only the minimal defective portion is discarded, while the majority of the mother plate is recovered and reused. This selective discarding approach minimizes material waste while ensuring product quality.
3Ease of repair
If defective regions are repaired by replacing divided plates, then the ease of repair is improved, but the device complexity increases
Solution Approach 1:
The mother plate is pre-divided into multiple divided plates before use, and bonding layers are pre-applied to facilitate easy replacement. This preliminary preparation enables simple defect correction by merely swapping the defective divided plate without complex repair procedures.
Data Source
AI summary
Proposed are a manufacturing method of an anodic oxide film structure, and an anodic oxide film structure. More particularly, proposed are a manufacturing method of an anodic oxide film structure, and an anodic oxide film structure, wherein production yield of the entire product can be improved by repairing a defective region to be made normal.