Bellows Protecting Cover for Singulation Debris Management
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Solution Overview
Problem
Existing singulation systems for electronic components face issues with debris accumulation and clogging in drainage channels, requiring frequent halts in the dicing machine to remove debris, and existing solutions complicate the process with additional drainage channels and pressure means.
Innovation Solution
A drainage apparatus with a bellows protecting cover that has side walls to prevent debris from falling off, coupled with a receptacle and a mechanism to guide debris directly into a collection point, eliminating the need for additional drainage channels and pressure means, allowing continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drainage channels are added to collect debris from horizontal sides of the cover, then debris collection is improved, but device complexity increases and debris accumulation causes clogging
Solution Approach 1:
The invention extracts the problematic drainage channels from the system entirely. Instead of adding complex drainage channels to collect debris, the solution removes the source of the problem by designing a cover geometry where debris naturally falls vertically onto the bellows protecting cover and is directed to the receptacle without requiring additional collection channels.
Solution Approach 2:
Instead of trying to collect debris that falls off the horizontal sides through additional drainage channels, the invention inverts the approach by designing the cover with a geometry that prevents debris from falling off the sides in the first place. The cover extends horizontally beyond the bellows and directs all debris downward onto the bellows surface, where it is then carried to the receptacle.
2Extent of automation
If pressure means such as water jet or air jet is installed to wash debris down the sloping floor, then automatic debris removal is achieved, but device complexity and energy consumption increase
Solution Approach 1:
The invention makes the system self-service by using the existing machining water flow to carry debris to the receptacle. The bellows protecting cover is designed to channel debris onto the bellows surface, where the flowing machining water naturally picks up and transports the debris to the receptacle without requiring additional pressure means or energy input.
Solution Approach 2:
The invention uses hydraulics (machining water flow) that is already present in the dicing machine to achieve debris removal. The bellows protecting cover directs debris onto the bellows surface where the existing water flow carries the debris to the receptacle, eliminating the need for additional pneumatic or hydraulic pressure systems.
3Object-affected harmful factors
If bellows are provided to cover the slide, then protection from water and debris is improved, but debris accumulates between the folds of the bellows causing damage
Solution Approach 1:
The invention applies beforehand cushioning by placing the bellows protecting cover over the bellows to shield them from sharp debris. The cover acts as a protective barrier that prevents sharp-edged singulated substrates and other debris from cutting and damaging the bellows during the dicing operation.
Solution Approach 2:
The bellows protecting cover serves as an intermediary element between the debris-generating dicing process and the bellows. It intercepts sharp debris and directs it to the receptacle, preventing direct contact between harmful debris and the bellows, thus protecting the bellows from damage.
4Reliability
If manual removal of accumulated debris is performed, then clogging is cleared, but productivity decreases due to machine halts
Solution Approach 1:
The invention ensures continuous operation by eliminating the need for periodic halts to remove debris. The bellows protecting cover design channels all debris directly to the receptacle where it is continuously carried away by the machining water flow, maintaining uninterrupted dicing operation and maximizing productivity.
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 solution efficiently collects and removes debris without clogging, reducing the need for frequent machine halts and simplifying the drainage system, enhancing operational efficiency by preventing debris from falling off the sides and eliminating the requirement for pressure-assisted debris removal.
Implementation Method 1
guide debris from the carrier along a longitudinal length of the bellows protecting cover towards the receptacle
Implementation Method 2
side walls extending along opposite sides of the longitudinal length of the bellows protecting cover which prevent debris from falling off the sides
Implementation Method 3
bellows are provided that extend over and cover the slide on which the chuck table is driven
Data Source
AI summary
A singulation system for a workpiece has a carrier for mounting the workpiece during singulation and a receptacle for collecting debris formed. A driving mechanism, which is operative to move the carrier and the workpiece, is at least partially covered by a bellows. A bellows protecting cover extending over the bellows is coupled between the carrier and the receptacle and is operative to guide debris from the carrier along its longitudinal length towards the receptacle. The bellows protecting cover further comprises side walls extending along opposite sides of its longitudinal length to prevent debris from falling off its sides.