Circuit Board Compression for Panel Alignment Accuracy
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Solution Overview
Problem
Existing electronic device manufacturing processes face challenges in accurately aligning and stably coupling circuit boards to panels with multiple pad areas, leading to potential misalignment and instability during the manufacturing of electronic devices like displays and touch screens.
Innovation Solution
A method and equipment are developed to align and compress circuit boards to panels with multiple pad areas, using a stage system and compression units that include adherence and pressing modules to securely attach the circuit board portions to specific pad areas on the panel, ensuring precise alignment and stable coupling through temporary and main compression stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a circuit board is aligned to multiple pad areas on different surfaces of a panel, then the coupling stability is improved, but the alignment accuracy deteriorates due to the complexity of multi-surface alignment
Solution Approach 1:
The circuit board is divided into multiple portions (first portion, second portion, third portion) that can be independently aligned and compressed to different pad areas on the panel. This segmentation allows each portion to be precisely positioned on its corresponding pad area, improving overall alignment accuracy while maintaining coupling stability across multiple surfaces.
Solution Approach 2:
The first portion of the circuit board is temporarily compressed to the first pad area before the second portion is compressed to the second pad area. This preliminary action establishes a stable reference point that facilitates subsequent alignment operations, ensuring high alignment accuracy is maintained throughout the multi-surface coupling process.
2Ease of manufacture
If compression is applied to multiple pad areas simultaneously, then the manufacturing process is simplified, but the control over compression parameters deteriorates
Solution Approach 1:
The compression process is segmented into separate stages: first compression of the first portion to the first pad area, then compression of the second portion to the second pad area. This segmentation enables independent control of compression parameters for each stage, allowing precise adjustment of pressure, temperature, and timing for each pad area without interference from other areas.
Solution Approach 2:
The compression system is designed to dynamically adjust compression parameters between stages. The first compression sets initial conditions, and the second compression can be independently optimized based on the state achieved in the first stage. This dynamic control enables fine-tuning of compression parameters for each pad area while maintaining overall process simplicity.
3Reliability
If the circuit board portions are independently aligned to different surfaces, then the coupling stability is improved, but the process time increases
Solution Approach 1:
The first portion is temporarily compressed to the first pad area as a preliminary action before the second portion is compressed to the second pad area. This preliminary compression establishes stable references and reduces the complexity of subsequent alignment operations, enabling faster and more accurate alignment of the second portion without compromising coupling stability.
Solution Approach 2:
The temporary compression of the first portion is used as an intermediate state that facilitates the final alignment. After the second portion is compressed and the overall alignment is stabilized, the temporary compression is adjusted or removed as needed. This approach enables efficient multi-surface alignment by using temporary states to achieve the final stable configuration more quickly.
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 approach enhances the accuracy and stability of coupling circuit boards to panels, reducing misalignment issues and improving the manufacturing process efficiency by allowing for independent control of compression parameters and minimizing interference between different pad areas.
Implementation Method 1
moving the first portion to be on (or over) one side of the panel by adhering to the one surface thereof
Data Source
AI summary
Provided is a method for manufacturing an electronic device. The method includes providing a panel to a stage, providing a circuit board, aligning the circuit board so that first pads of the circuit board face a first pad area of the panel and second pads of the circuit board face a second pad area of the panel, and compressing a first portion of the circuit board on which the first pads are arranged to the first pad area of the panel. The aligning of the circuit board occurs via by external contact on one surface of the first portion of the circuit board and one surface of the second portion of the circuit board.