Operating Shock Analysis of a Thermally Assisted Magnetic Recording Head Gimbal Assembly Considering the Thermal Effects During Writing to Record the Data

Author

Kim, Ki-Hoon ; Kim, Seokhwan ; Park, No-Cheol ; Park, Young-Pil ; Park, Kyoung-Su

Author_Institution

Dept. of Mech. Eng., Yonsei Univ., Seoul, South Korea

Volume

47

Issue

7

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

2005

Lastpage

2008

Abstract

In this paper, a thermally assisted magnetic recording (TAMR) head gimbal assembly (HGA) with an optical fiber and prism is proposed. The stiffness of a TAMR HGA is increased by an optical fiber and prism. Therefore, in this paper, operating shock analysis of a TAMR HGA considering the thermal effects during writing to record the data is numerically performed. Flying height (FH) analysis considering the thermal deformation by laser source also is investigated. As a result, judging from shock point of view, the shock characteristic of a TAMR HGA is better than that of conventional HGA. However, when considering the thermal effects during writing to record the data, the risk of contact for a TAMR HGA between media and slider is larger than that of conventional HGA. Hence, to solve these problems of a TAMR HGA, we should consider selection for material of media and TAMR slider, and design for head parts of TAMR slider.

Keywords

deformation; magnetic heads; magnetic recording; optical fibres; optical prisms; thermal shock; flying height analysis; laser source; operating shock analysis; optical fiber; thermal deformation; thermal effects; thermally assisted magnetic recording head gimbal assembly; Dynamics; Electric shock; Heating; Magnetic heads; Magnetic recording; Media; Thermal analysis; Optical fiber; prism; shock; thermal deformation; thermally assisted magnetic recording (TAMR); writing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2128861

Filename

5929005