Suction Tray Holder for Magnetic Head Sliders
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Solution Overview
Problem
Conventional wash-target holders for electronic components, such as magnetic head sliders, face issues with cleanliness due to nets contacting critical components, solvent retention, ESD risks, and unstable holding during ultrasonic washing, leading to potential damage.
Innovation Solution
A wash-target holder with a tray featuring suction holes and a surrounding member that allows the wash-target to be held without covering its surface, promoting solvent circulation and preventing solvent retention, while a sucking device ensures stable holding and efficient solvent circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nets are used to hold and surround the wash-target, then the wash-target can be contained and prevented from moving, but the nets contact the wash-target surface and obstruct solvent access, deteriorating cleanness
Solution Approach 1:
The invention extracts and removes the nets from the holder structure entirely. Instead of using nets to hold and surround the wash-target, the patent employs a tray-based holder where the wash-target is held by suction force applied through holes in the tray bottom, eliminating the harmful contact between nets and the wash-target surface.
Solution Approach 2:
The invention applies pneumatic principles by using suction force (negative pressure) applied through holes in the tray bottom to hold the wash-target in place. This replaces the mechanical net-based holding method with a non-contact pneumatic holding mechanism, thereby eliminating net contact with the wash-target surface.
2Reliability
If the wash-target is surrounded by wall faces and nets, then the wash-target is contained within the holder, but the solvent cannot be easily removed from the wash-target after washing, causing solvent retention and stains
Solution Approach 1:
The invention segments the holder structure into an open tray design without enclosing walls or nets. The tray has a bottom surface with holes and side walls that do not fully enclose the wash-target, allowing solvent to drain freely from all sides of the wash-target after washing, eliminating solvent retention issues.
Solution Approach 2:
Instead of enclosing the wash-target with walls and nets as in conventional holders, the invention inverts the approach by using an open tray structure where the wash-target rests on the bottom surface with exposure on all other sides, enabling complete solvent drainage and removal.
3Reliability
If nets are used to hold both sides of the wash-target, then the wash-target can be secured, but ESD break is likely to be generated and the wash-target may move during ultrasonic oscillation
Solution Approach 1:
The invention uses pneumatic suction force applied uniformly through holes in the tray bottom to hold the wash-target securely in place. This non-contact holding method eliminates the risks of ESD damage and mechanical damage from net contact, while still providing stable containment during ultrasonic oscillation.
Solution Approach 2:
The invention changes the holding mechanism from mechanical net contact to pneumatic suction force application. By changing the physical parameter of the holding force from contact-based to field-based (pressure differential), the system achieves secure holding without the harmful side effects of net contact.
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 washing efficiency and cleanliness by exposing the wash-target's surface fully to the solvent, reducing solvent retention, and preventing damage during washing.
Implementation Method 1
a suction hole which is opened through the tray at a wash-target placing area for sucking the wash-target from an opposite side of the wash-target placing area
Implementation Method 2
the wash-target is held to the tray without pressing over one face of the wash-target by a holding member. Thus, there is no holding member covering over the surface of the wash-target at the time of washing
Data Source
AI summary
It is to improve the washing efficiency of the wash-target and the cleanness of the washing. There is provided a wash-target holder that is soaked in a wash tank by holding at least one wash-target, which comprises a tray for placing the wash-target, wherein a suction hole is provided at a wash-target placing area of the tray, which is opened through the tray for sucking the wash-target from an opposite side of the wash-target placing area.