Magnetic Head Slider Mechanical Pressure Mounting
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Solution Overview
Problem
Conventional magnetic head devices face challenges in maintaining a stable floating distance between the slider and the recording medium due to adhesive deformation and susceptibility to static electricity, with increasing recording density and sensitivity leading to fluctuations in the magnetic head's position and recording/reproducing properties.
Innovation Solution
A magnetic head device with a slider that is mechanically pressure-mounted to a supporting member using locking segments, eliminating the need for adhesives and ensuring electrical grounding, thereby stabilizing the floating distance and protecting against electrostatic damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is used to bond the slider to the tongue segment, then the slider can be fixed to the supporting member, but the adhesive may deform during manufacturing and use, causing fluctuations in floating distance
Solution Approach 1:
The invention extracts and eliminates the adhesive from the bonding system. Instead of using adhesive to bond the slider to the tongue segment, the patent uses a mechanical pressing structure where the front end of the tongue segment presses the rear end of the slider, achieving fixation without any adhesive material that could deform.
Solution Approach 2:
The invention replaces the chemical bonding mechanism (adhesive) with a mechanical pressing system. The tongue segment's front end mechanically presses the slider's rear end against the load beam, providing a stable, deformation-free bonding alternative that maintains precise floating distance.
2Productivity
If the floating distance is reduced to 9-10 nm for high recording density, then recording density increases, but any slight deformation in the bonding resin adversely affects recording/reproducing properties
Solution Approach 1:
By extracting the adhesive from the system, the invention eliminates the source of deformation that could affect the ultra-precise 9-10 nm floating distance required for high recording density operations, thereby maintaining both high productivity and reliability.
Solution Approach 2:
Instead of trying to protect the adhesive from deformation, the invention inverts the approach by eliminating the adhesive entirely and using a rigid mechanical pressing structure that cannot deform, ensuring stable floating distance at ultra-low 9-10 nm gaps.
3Reliability
If conductive resin is used to provide electrical conduction, then electrical connection is achieved, but it becomes difficult to protect magnetic reproducing heads with weak static electricity resistance
Solution Approach 1:
The invention replaces the conductive resin's electrical conduction function with a mechanical contact system. The tongue segment and slider are pressed together mechanically, creating direct electrical contact through the pressing force, which provides both electrical conduction and static electricity protection without using conductive resin.
Solution Approach 2:
The mechanical pressing structure acts as an intermediary that simultaneously provides electrical conduction and static electricity protection. The direct mechanical contact between the tongue segment and slider creates a reliable electrical path that is more effective than conductive resin for protecting sensitive magnetic reproducing heads.
Data Source
AI summary
A locking segment presses a slider towards a supporting member so that the slider is fixed to the supporting member. In the present invention, the slider is mechanically pressure-mounted to the supporting member without the use of an adhesive. This reduces the fluctuation of the distance between the slider and the supporting member. Accordingly, when a magnetic head is scanning a recording medium in a floating fashion, the floating distance of the magnetic head can be readily controlled within a predetermined range.