Adjustable Clamp Finger With Exchangeable Tips for Leadframes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing clamp fingers for wirebonding tools are inflexible and require multiple types to accommodate various leadframe designs, leading to increased costs and inefficiencies due to wear and tear, limiting their adaptability and durability.
Innovation Solution
A clamp finger design featuring a slidable rail and groove system, allowing adjustable positioning and exchangeable tip portions, which can be adjusted or replaced to fit different leadframe down-set distances, reducing the need for multiple clamp finger types and minimizing wear-related issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of clamp fingers are used to accommodate various leadframe designs, then adaptability is improved, but device complexity and cost increase
Solution Approach 1:
The clamp finger is divided into a body portion and a separate tip portion that can be exchanged independently. The tip portion is detachably coupled to the body portion through a coupling mechanism, allowing the tip to be replaced while retaining the body portion. This segmentation enables adaptation to different leadframe designs by simply changing the tip portion rather than replacing the entire clamp finger.
Solution Approach 2:
The body portion of the clamp finger is designed as a universal component that can accommodate multiple tip portions with different configurations. The standardized coupling mechanism and adjustable positioning system allow a single body portion to work with various tip types, making the clamp finger system multi-functional and adaptable to different leadframe designs without requiring multiple complete clamp finger types.
2Adaptability or versatility
If multiple types of clamp fingers are used to accommodate various leadframe designs, then adaptability is improved, but cost increases
Solution Approach 1:
By segmenting the clamp finger into expensive reusable body portions and cheaper replaceable tip portions, the overall cost is reduced. The body portion containing the motor, sensor, and coupling mechanism can be reused across multiple tip portions, while only the consumable tip portions need to be replaced when worn or when adapting to different applications.
Solution Approach 2:
The tip portions are designed as disposable or recoverable components that can be replaced when worn out, while the valuable body portion is recovered and reused. This allows the expensive motorized assembly to be retained and used with multiple different tip portions, significantly reducing the overall cost compared to replacing entire clamp finger assemblies.
3Device complexity
If clamp fingers are made fixed and non-adjustable, then device complexity is reduced, but adaptability to different down-set distances is limited
Solution Approach 1:
The clamp finger incorporates adjustable positioning mechanisms that allow the tip portion to be dynamically repositioned relative to the body portion. Motors and sensors enable the tip to be moved to different positions and depths, allowing adaptation to various down-set distances while maintaining a relatively simple overall structure through standardized components.
Solution Approach 2:
The clamp finger system allows changes in positional parameters through motorized adjustment mechanisms. The tip portion can be positioned at different heights, angles, and depths relative to the body portion, enabling adaptation to different down-set distances by changing these parameters rather than requiring fundamentally different clamp finger designs.
Data Source
AI summary
Implementations of a clamp finger may include a first portion including at least one tip configured to clamp a substrate against an anvil during a bonding operation; and a second portion including a first opening therethrough configured to permit coupling of the second portion with a clamping bridge. The first portion may be slidably coupled with the second portion through a rail and the first portion may include an opening therethrough configured to receive a screw that fixedly couples the at least one tip of the first portion at a desired position relative to the second portion.