Substrate Edge Cleaning Guide Unit and Brush
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Solution Overview
Problem
Existing substrate cleaning apparatuses are inadequate for effectively cleaning the end surfaces of substrates without damaging circuits or components on the main surfaces.
Innovation Solution
An apparatus with a guide unit featuring a channel and a brush with controlled front end positioning, where the brush contacts the end surface through an opening in the channel, and a suction mechanism to collect dust, ensuring precise cleaning and dust removal without affecting the main surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a brush contacts the end surface of the substrate to clean it, then cleaning effectiveness is improved, but the risk of damaging circuits and components on the main surfaces increases
Solution Approach 1:
The guide portion is divided into a front surface with a channel and a rear surface with a concave portion. The channel guides the substrate end surface while the concave portion houses the brush, separating the guidance function from the cleaning function to enable precise control of brush contact.
Solution Approach 2:
The channel acts as an intermediary structure that guides the substrate end surface into proper alignment with the brush. This intermediary mechanism ensures the brush only contacts the end surface and not the main surfaces with circuits and components.
2Stability of the object's composition
If the brush front end position is controlled by contacting the rear surface of the guide portion, then cleaning stability is improved, but dust dispersion increases
Solution Approach 1:
The concave portion merges multiple functions: it houses the brush, collects dust generated during cleaning, and provides a stable reference surface for positioning the brush front end. This integration eliminates dust dispersion while maintaining cleaning stability.
Solution Approach 2:
The dust that would normally disperse harmfully is instead collected and contained within the concave portion, converting a harmful effect into a manageable situation where dust can be easily removed via the suction hole.
3Ease of operation
If the channel includes an opening for brush contact, then accessibility to end surface is improved, but structural complexity increases
Solution Approach 1:
The guide portion serves multiple functions: the channel guides the substrate, the opening provides brush accessibility, and the concave portion houses the brush and collects dust. This multi-functionality reduces the need for separate components, thereby reducing overall structural 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
The apparatus efficiently cleans the end surfaces of substrates while minimizing contact with circuits and components, effectively removing dust and preventing reattachment, with stable brush positioning and efficient dust collection.
Implementation Method 1
a suction hole that sucks dust from the concave portion
Data Source
AI summary
An apparatus that cleans end surfaces of a substrate includes: a guide unit including a guide portion that has a channel, through which an end surface of a substrate passes, formed in a front surface thereof; and a brush with a front end whose position is controlled by a rear surface of the guide portion. The channel includes an opening that extends through the guide portion and the front end of the brush contacts an end surface of a substrate passing through the channel via the opening. The guide unit includes a concave portion in which at least the front end of the brush is housed and a suction hole that sucks dust from the concave portion.