Programmable Wire Shaping Tool for Bond Head
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Solution Overview
Problem
Conventional wire bonding systems are limited in their ability to form multiple wire loop shapes without mechanical adjustments, making them inefficient for applications requiring diverse wire geometries within a single process.
Innovation Solution
A programmable wire bonding system with an independently movable wire shaping tool carried by the bond head, allowing for software-controlled manipulation of wire loops to achieve various shapes and geometries, including programmable loop heights and bend locations, without mechanical adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional wire loop shaping tools are mechanically adjusted to form different wire loop shapes, then manufacturing precision is improved, but loss of time increases due to required mechanical adjustments between shape changes
Solution Approach 1:
The wire shaping tool is made dynamically adjustable through programmable control, allowing the tool to automatically change positions and shapes without mechanical intervention. The system uses computer-controlled movement to dynamically reposition the shaping tool at different locations along the wire path, enabling rapid transition between different wire loop geometries while maintaining manufacturing precision.
Solution Approach 2:
Manual mechanical adjustment mechanisms are replaced with an automated programmable control system. The computer-controlled system substitutes for manual mechanical operations by automatically calculating and executing the precise movements and positioning required to form different wire loop shapes, eliminating the time-consuming mechanical adjustment process while preserving shape accuracy.
2Adaptability or versatility
If conventional wire bonding systems use fixed mechanical shaping tools, then device complexity is reduced, but adaptability deteriorates as only single wire loop shape can be formed
Solution Approach 1:
The wire shaping tool is designed with multi-functionality, capable of forming multiple different wire loop shapes and geometries through programmable control. The same physical tool can be repositioned and reconfigured via computer control to create various wire loop configurations, making the system universal rather than dedicated to a single shape, thereby improving adaptability without proportionally increasing physical complexity.
Solution Approach 2:
The system achieves adaptability by programmatically changing operational parameters such as tool position, wire tension, and shaping force rather than physically reconfiguring the tool for each shape. This allows the same hardware to produce multiple wire loop geometries by varying control parameters, enhancing versatility while minimizing additional 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
Enables the formation of multiple wire geometries and shapes on a single machine, reducing time and costs by eliminating the need for mechanical adjustments, thereby enhancing the efficiency of wire bonding operations.
Implementation Method 1
ultrasonic bonding (e.g., wire bonding, ribbon bonding, etc.) continues to be a widely used method of providing electrical interconnection
Data Source
AI summary
A wire bonding system is provided. The system includes a bond head, a bonding tool carried by the bond head, a wire supply configured for bonding by the bonding tool, and a wire shaping tool carried by the bond head. The wire shaping tool is independently moveable with respect to the bond head and the bonding tool.