Pad Conditioner Cleaning Tool With Clamping Arms
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Solution Overview
Problem
The buildup of dried or coagulated polishing liquid on the conditioner head in chemical mechanical polishing systems leads to scratches and defects, requiring significant non-productive time for cleaning and maintenance.
Innovation Solution
A pad conditioner head cleaning tool with clamping arms and a sponge that can be easily attached to the conditioner head, allowing for efficient removal of polishing liquid buildup through dry or wet cleaning methods, reducing scratches and maintenance time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cleaning methods are used to remove polishing liquid buildup from the conditioner head, then the buildup is removed, but significant non-productive time is required for maintenance
Solution Approach 1:
The cleaning tool is designed to be easily attachable and detachable from the conditioner head, enabling operators to quickly perform cleaning tasks without requiring complex setup or disassembly procedures. The self-contained design with integrated clamps and sponge allows for rapid cleaning cycles that minimize production downtime while maintaining polishing quality.
2Reliability
If the cleaning tool applies sufficient pressure to effectively remove buildup, then cleaning effectiveness improves, but the risk of damaging the conditioner head increases
Solution Approach 1:
The spring mechanism provides controlled elastic pressure that adapts to the conditioner head surface, maintaining optimal cleaning force without exceeding damage thresholds. The flexible arm allows the clamps to self-adjust their positioning and pressure distribution, ensuring effective buildup removal while protecting the conditioner head from mechanical damage.
3Ease of operation
If a simple cleaning tool design is used, then ease of operation improves, but the ability to adapt to different cleaning needs decreases
Solution Approach 1:
The cleaning tool incorporates a replaceable sponge component that can be exchanged between dry and wet cleaning modes, providing versatility without complicating the overall device structure. The universal clamp design with flexible arms accommodates variations in conditioner head geometry, allowing the same tool to effectively clean different types of conditioner heads while maintaining ease of operation.
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
Improves polishing quality by reducing scratches and defects, decreases maintenance downtime, and increases productivity by simplifying the cleaning process and allowing quick adjustments between cleaning modes and sponge types.
Implementation Method 1
a spring positioned inside the U-shaped channel and in engagement with the movable clamp. The spring is configured to bias the movable clamp toward the fixed clamp
Implementation Method 2
The arm is sufficiently flexible to permit the first clamp and the second clamp to be separated to fit around the disk-shaped pad conditioner head
Implementation Method 3
creating relative motion between the cleaning tool and the pad conditioner head to wipe the sponge against the pad conditioner head
Data Source
AI summary
A method of cleaning a conditioner head includes bringing two clamps of a cleaning tool inward toward a disk-shaped pad conditioner head to press a sponge against an outer surface of the disk-shaped pad conditioner head, and creating relative motion between the cleaning tool and the pad conditioner head to wipe the sponge against the pad conditioner head.