Design of small recording head elements using thermally constrained transmission line modeling

Author

Bain, James A. ; Jayasekara, Wipul ; Kryder, Mark H. ; Jander, Albrecht ; Indeck, Ronald S.

Author_Institution

Carnegie Mellon Univ., Pittsburgh, PA, USA

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

2675

Lastpage

2677

Abstract

A highly compact inductive recording element has been designed with a total width of 22 μm. Using a combination of finite element modeling (thermal) and transmission line modeling (magnetic), this element has been evaluated in terms of the maximum field it can produce at the media surface. Maximum field is set by the point of head saturation or a limit on write current due to resistive heating of the coil, whichever comes first. Using this model, an evaluation of maximum field as a function of the heat sinking capacity of the head is given

Keywords

finite element analysis; heat sinks; magnetic heads; transmission line theory; 22 micron; finite element modeling; head saturation; heat sinking capacity; inductive recording element; maximum field; media surface; recording head elements; resistive heating; thermally constrained transmission line modeling; write current; Coils; Conducting materials; Finite element methods; Magnetic heads; Magnetic materials; Magnetic recording; Power transmission lines; Saturation magnetization; Semiconductor materials; Transmission lines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.490089

Filename

490089