Title :
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
fDate :
11/1/1995 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
