Laser-Cut Brush Nodules for Uniform Semiconductor Contact Cleaning
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Solution Overview
Problem
Conventional methods for forming brushes used in semiconductor manufacturing and other industries result in inconsistencies in the application surface, leading to suboptimal cleaning quality and potential defects due to uneven contact surfaces and debris accumulation.
Innovation Solution
A laser cutting system is employed to form brushes with nodules, using a CO2 laser and CNC technology to cut and shape the brush surfaces, ensuring uniformity and preventing deformation, while maintaining moisture to prevent damage, allowing for precise control of nodule geometry and fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional methods are used to form brushes, then manufacturing simplicity is maintained, but manufacturing precision deteriorates resulting in inconsistent application surfaces
Solution Approach 1:
The patent replaces conventional mechanical brush formation methods with a laser-based system. The laser system uses optical energy to precisely ablate and shape brush nodules, achieving superior application surface uniformity while maintaining manufacturing simplicity through automated laser processing and CNC control.
Solution Approach 2:
The patent utilizes laser parameters (power, pulse duration, wavelength) to precisely control the formation and shaping of brush nodules. By adjusting these parameters, the system achieves consistent nodule geometry and uniform application surfaces, resolving the precision issue while keeping the process adaptable and controllable.
2Reliability
If conventional brush formation methods are used, then process simplicity is maintained, but cleaning quality deteriorates due to uneven contact surfaces
Solution Approach 1:
The patent replaces mechanical brush formation with laser-based processing, which provides non-contact, precise control over nodule geometry. This ensures uniform contact surfaces that directly improve cleaning quality and reliability, while the automated laser system maintains operational simplicity.
Solution Approach 2:
The patent performs preliminary laser shaping and conditioning of the brush nodules before actual cleaning operations. This pre-processing ensures that the brush has the optimal geometry and surface uniformity required for high-quality cleaning, thereby improving reliability while keeping the overall system manageable.
3Manufacturing precision
If conventional methods are used to form brushes, then manufacturing simplicity is maintained, but manufacturing precision deteriorates leading to debris accumulation
Solution Approach 1:
The patent replaces mechanical cutting and shaping methods with laser ablation technology. The laser system precisely removes material to create uniform nodule geometries, eliminating the variability and debris accumulation associated with mechanical methods, while the automated control system maintains manufacturing simplicity.
Solution Approach 2:
The patent employs controlled laser parameters (power density, pulse duration, scan speed) to achieve precise nodule geometry formation. By optimizing these parameters, the system produces consistent, debris-free surfaces while maintaining an efficient and relatively simple manufacturing process through automated laser control.
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
The method achieves consistent and efficient cleaning by ensuring uniform brush geometry, reducing debris accumulation, and maintaining surface quality, thereby enhancing cleaning efficacy and preventing defects.
Implementation Method 1
A laser cutting system is employed to form brushes with nodules, using a CO2 laser and CNC technology to cut and shape the brush surfaces
Data Source
AI summary
Systems and methods of forming a brush for advanced semiconductor contact cleaning applications are disclosed. For example, a contact surface or surfaces, such as a nodule, of a brush can be cut by a laser cutting system. The use of a laser cutting system allows for uniform cutting of the contact surface across a length of the brush.