Manufacturing method of a slider

Patent metadata

Field	Value
Publication number	US-10486283-B2
Application number	US-201715642548-A
Country	US
Kind code	B2
Filing date	Jul 6, 2017
Priority date	Feb 29, 2012
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A manufacturing method of a slider includes steps of: (a) providing a row bar with a plurality of slider elements connecting together; (b) lapping surfaces of the row bar so as to obtain a predetermined requirement; (c) lowering the temperature of the surfaces lapped in the step (b) before and/or during lapping; and (d) cutting the row bar into a plurality of sliders. The present invention can prevent a local high temperature generated on the magnetic head during lapping so that the performance of the magnetic head is improved.

First claim

What is claimed is:

1. A manufacturing method of a slider, comprising:
(a) providing a row bar including a plurality of slider elements connecting together;
(b) lapping surfaces of the row bar so as to obtain one or more characteristics of the plurality of slider elements;
(c) lowering temperatures of the surfaces of the row bar lapped before and/or during the lapping of the surfaces, and controlling the temperatures of the surfaces to be between 0° C. and 15° C. during the lapping of the surfaces; and
(d) cutting the row bar into a plurality of sliders.

2. The manufacturing method of a slider according to claim 1 , wherein the temperatures of the surfaces of the row bar are controlled to be between 5° C. and ˜15° C. during the lapping of the surfaces.

3. The manufacturing method of claim 1 , wherein the surfaces of the row bar comprises an air bearing surface and a back surface opposite the air bearing surface.

4. The manufacturing method of claim 1 , wherein lowering the temperatures of the surfaces of the row bar lapped before and/or during the lapping of the surfaces comprises refrigerating a lapping medium applied on a lapping plate contacting the surfaces of the row bar.

5. The manufacturing method of claim 4 , wherein the lapping medium comprises lapping oil and/or a diamond slurry.

6. The manufacturing method of claim 1 , wherein lowering the temperatures of the surfaces of the row bar lapped before and/or during the lapping of the surfaces comprises lowering the temperature of the entire row bar.

7. The manufacturing method of claim 1 , wherein lowering the temperatures of the surfaces of the row bar lapped before and/or during the lapping of the surfaces comprises lowering the temperature of the lapping condition.

8. The manufacturing method of claim 1 , further comprising lowering the temperature of a cutting surface before and/or during cutting the row bar.

9. The manufacturing method of claim 1 , further comprising grinding a bottom surface of the row bar before the step (b), and lowering the temperature of the bottom surface before and/or during grinding.

Assignees

• Sae Magnetics Hk Ltd

Inventors

• Lueng Chiuming
• Lee Mankit
• Pingul Lorest Garcia
• Fujita Yasutoshi
• Lui Cheukman
• Mok Chiyuen
• Leung Cheukwing
• Ding Juren
• Ni Rongkwang

Classifications

• B24B37/048 Primary

  of sliders and magnetic heads of hard disc drives or the like · CPC title

• Y10T29/49048

  Machining magnetic material [e.g., grinding, etching, polishing] · CPC title