Capillary Wire Bonding for Camera Lens Suspension Attachment
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Solution Overview
Problem
Existing wire bonding systems face challenges in accurately and reliably attaching wires to precision components, such as camera lens suspensions, due to the small scale and fragile nature of the components, leading to inefficiencies in manufacturing.
Innovation Solution
A wire feeding and bonding tool that uses a capillary to feed and attach wires to precision components, with a capillary having a feed opening and moving along a wire feed path to position the wire adjacent to attach structures, while maintaining coaxial alignment to prevent damage, and includes crimping and cutting tools for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional wire bonding systems are used to attach wires to precision components, then the manufacturing process can be completed, but the accuracy and reliability of wire attachment deteriorates due to the small scale and fragile nature of the components
Solution Approach 1:
The patent introduces a capillary as an intermediary component that guides and positions the wire with high precision during the bonding process. The capillary serves as a mediator between the wire feed mechanism and the attach structures, ensuring accurate wire placement while protecting the fragile wire through the capillary's protective enclosure
Solution Approach 2:
The invention applies localized precision mechanisms specifically at the wire attachment points. The capillary provides focused, high-precision wire delivery only where needed, rather than requiring the entire system to operate at high precision. The bonding tool includes localized positioning and alignment features that concentrate precision efforts where they are most critical for wire attachment
2Productivity
If traditional wire bonding systems are used, then wire attachment can be achieved, but manufacturing efficiency and productivity deteriorate due to the difficulty of handling fragile wires in small-scale components
Solution Approach 1:
The capillary-fed wire bonding system incorporates automatic wire feeding and positioning mechanisms that reduce the need for manual wire handling. The system self-regulates wire delivery through the capillary, automatically positions the wire at the attachment point, and maintains proper tension, thereby improving manufacturing efficiency while simplifying the overall manufacturing process
Solution Approach 2:
The invention replaces manual or粗放 mechanical wire handling with a more refined system that uses capillary-guided wire delivery. This substitution eliminates the need for operators to directly manipulate fragile wires, instead using a controlled mechanical system that feeds wire through the capillary to the attachment point, thereby improving both productivity and ease of manufacture
Data Source
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AI summary
A wire feeding and bonding tool and method for attaching wires to a component having first and second spaced-apart wire attach structures. Wire from a supply is fed through a capillary having at least a linear end portion with a feed opening. The capillary is positioned with respect to the component to locate a first portion of the wire extending from the feed opening adjacent to the first wire attach structure, and the wire is attached to the first attach structure. The capillary is moved with respect to the component along a wire feed path to feed the wire from the first wire attach structure to the second wire attach structure and to locate a second portion of the wire extending from the feed opening adjacent to the second attach structure. The wire is attached to the second wire attach structure, and cut from the supply.