Suspension for magnetic head slider characteristic test

Abstract

Embodiments in accordance with the present invention provide a magnetic head slider to be easily mounted on or dismounted from a suspension and can hold a magnetic head slider so as not to be removed due to a shock resultant from handling during a characteristic test and a manufacturing process. A load beam is formed with protruding portions on both sides. A flexure includes a frame portion, a plate portion, a spring portion, an E-shaped pressing portion, and a probe portion. The plate portion extends from a guide portion of the frame portion. The probe portion may be formed by partially cutting out the frame portion. A limiter is formed on both sides of the plate portion. The limiter protrudes from the rear of the load beam and has a hook-shaped tip. The hook-shaped portion of the limiter engages with the protruding portion 6 of the load beam to limit excess vertical movement of the flexure. A gap may be formed between the limiter and the protruding portion.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a top view of a suspension for magnetic head slider characteristic test according to an embodiment of the invention observed from a slider mounting side;

FIG. 1B is a side view of FIG. 1A;

FIG. 1C is the rear of FIG. 1A, i.e., a top view of the suspension for characteristic test observed from a side opposite the slider mounting side observed from a side opposite the slider mounting side;

FIG. 2A is a top view of the suspension characteristic test provided with a magnetic head slider;

FIG. 2B is a side view of FIG. 2A;

FIG. 3 is a perspective view showing an example of the magnetic head slider;

FIG. 4A shows how to mount the magnetic head slider on the suspension for characteristic test;

FIG. 4B shows how to mount the magnetic head slider on the suspension for characteristic test;

FIG. 4C shows how to mount the magnetic head slider on the suspension for characteristic test;

FIG. 5A shows how to dismount the magnetic head slider;

FIG. 5B shows how to dismount the magnetic head slider;

FIG. 5C shows how to dismount the magnetic head slider;

FIG. 6 shows a state where the magnetic head slider flies over a magnetic disk;

FIG. 7A shows behavior of the magnetic head slider when no limiter is used;

FIG. 7B shows behavior of the magnetic head slider when no limiter is used;

FIG. 7C shows behavior of the magnetic head slider when no limiter is used;

FIG. 7D shows behavior of the magnetic head slider when no limiter is used;

FIG. 7E shows behavior of the magnetic head slider when no limiter is used;

FIG. 8A shows behavior of the magnetic head slider when a limiter is used;

FIG. 8B shows behavior of the magnetic head slider when the limiter is used; and

FIG. 8C shows behavior of the magnetic head slider when the limiter is used.

Claims

1. A suspension for magnetic head slider characteristic test comprising: a load beam;a flexure that is attached to the load beam at one end, includes a frame portion and a magnetic head slider holding portion, and holds a magnetic head slider between a spring portion formed on the magnetic head slider holding portion and a probe portion; anda circuit pattern that is layered on the load beam and the flexure and is connected to the probe portion,wherein, when the magnetic head slider and the flexure are displaced in a direction to be separate from the load beam, the flexure has a mechanism that engages with part of the load beam to limit displacement of the flexure.

2. The suspension for magnetic head slider characteristic test according to claim 1, wherein the mechanism to limit displacement of the flexure is formed by extending part of both sides of the flexure's magnetic head slider holding portion beyond the load beam;wherein a tip of the mechanism faces, with a gap, to a protruding portion protruding from each of both sides of the load beam; andwherein, when the magnetic head slider and the flexure are displaced more largely than the gap, the tip touches the protruding portion.

3. The suspension for magnetic head slider characteristic test according to claim 1, wherein the mechanism to limit displacement of the flexure is formed by bending a hook-shaped portion toward the load beam, the hook-shaped portion laterally protrudes from both sides of the flexure's magnetic head slider holding portion.

4. The suspension for magnetic head slider characteristic test according to claim 3, wherein the spring portion is formed by zigzag bending a part extending from the flexure's magnetic head slider holding portion.

5. The suspension for magnetic head slider characteristic test according to claim 4, wherein the probe portion is formed by cutting out part of the flexure's frame portion and faces to the spring portion.

6. A suspension for magnetic head slider characteristic test comprising: a load beam having a protruding portion protruding from both sides of one end;a flexure having: one end thereof attached to one end of the load beam; a frame portion provided with both sides and guide portions for the both sides; a plate portion extending from the guide portion of the frame portion to a side for mounting the load beam; a spring portion extending from the plate portion; a pressing portion forming a tip of the spring portion; a probe portion formed on the guide portion of the frame portion and positioned opposite to the pressing portion; and a limiter that extends from both sides of the plate portion over a protruding portion of the load beam and is tipped with a hook-shaped portion facing to the protruding portion with a gap therebetween; anda circuit pattern that is layered on the load beam and the flexure and is connected to the probe portion via the flexure's frame portion,wherein a magnetic head slider is placed on the plate portion and is held between the probe portion and the pressing portion by means of force applied from the spring portion.

7. The suspension for magnetic head slider characteristic test according to claim 6, wherein the limiter comes into contact with the protruding portion to limit displacement of the flexure in a direction separate from the load beam.

8. The suspension for magnetic head slider characteristic test according to claim 6, wherein the limiter is formed by bending hook-shaped portions protruding from the plate portion at both sides toward the load beam.

9. The suspension for magnetic head slider characteristic test according to claim 6, wherein the spring portion is formed by zigzag bending part of the plate portion.

10. The suspension for magnetic head slider characteristic test according to claim 6, wherein the probe portion is formed by cutting out the guide portion of the frame portion.