Automated Wire Bonding Tool Replacement for Downtime Reduction
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Solution Overview
Problem
Existing wire bonding systems face significant delays and machine downtime due to the need for frequent replacement of wire bonding tools and wires, which is labor-intensive and inefficient.
Innovation Solution
A wire bonding system equipped with a wire bonding tool replacement system that includes a clamping mechanism for securely removing and replacing wire bonding tools, along with a wire replacement system that automates the process of removing and replacing wires, thereby minimizing downtime and labor hours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual replacement of wire bonding tools is used, then labor flexibility is maintained, but machine downtime increases significantly
Solution Approach 1:
The wire bonding tool replacement system enables automatic self-service replacement without manual intervention. The system includes a tool holder that automatically grasps, removes, and installs wire bonding tools, along with a wire feeder that automatically feeds new wire onto the tool, creating a self-sufficient replacement mechanism that eliminates operator involvement and reduces downtime
Solution Approach 2:
The patent introduces an intermediary automated replacement system between the operator and the wire bonding tool. This intermediary system comprises a tool holder mechanism, wire feeder, and control unit that mediate the replacement process, transferring the function from manual operation to automated execution while maintaining system continuity
2Reliability
If frequent wire bonding tool replacement is performed manually, then tool wear is addressed, but labor hours increase
Solution Approach 1:
The automated replacement system performs self-service by automatically detecting when tool replacement is needed, grasping the worn tool, removing it, installing a fresh tool from storage, and feeding new wire, all without operator intervention. This eliminates the labor burden while maintaining reliable tool wear management
Solution Approach 2:
The system prepares replacement tools in advance by storing multiple pre-loaded wire bonding tools in a tool magazine. When a tool needs replacement, a pre-prepared tool is already available for immediate installation, eliminating the time and effort required for manual tool preparation and changeover
3Productivity
If automated wire replacement system is implemented, then productivity increases, but device complexity increases
Solution Approach 1:
The tool holder mechanism serves multiple functions: it stores replacement tools, grasps worn tools for removal, holds new tools during installation, and positions them for attachment to the wire bonding system. This multi-functionality consolidates several components into one, increasing productivity while limiting the growth of overall system complexity
Solution Approach 2:
The patent merges the wire feeding function with the tool replacement function by integrating the wire feeder into the tool holder assembly. This combination allows simultaneous tool replacement and wire feeding in a single automated sequence, improving replacement efficiency while reducing the number of separate systems required
Data Source
AI summary
A wire bonding system is provided. The wire bonding system includes (i) a bond head assembly configured to carry a wire bonding tool; and (il) a wire bonding tool replacement system for replacement of the wire bonding tool with another wire bonding tool.