Title :
Self-heating effects in thin-film heads
Author :
Monson, J.E. ; Ash, K.P. ; Jones, R.E., Jr. ; Heim, D.E.
Author_Institution :
Harvey Mudd College, Claremont, CA
fDate :
9/1/1984 12:00:00 AM
Abstract :
Measurements have been made of the temperature rise in 3370-type thin-film heads. Steady-state rises of 78°C were observed for a write current of 100 mA with the heads in an insulated chamber. Results from transient and steady-state sine wave experiments indicate a short time constant (75 μs) thermal behaviour associated with the head´s film structure. Much longer time effects (25 s) were observed and seem connected with the slider and its environment. A simple analytical model was in good agreement with the observed short time behaviour.
Keywords :
Magnetic recording/reading heads; Magnetic thermal factors; Bridge circuits; Coils; Insulation; Magnetic films; Magnetic heads; Magnetic recording; Steady-state; Temperature measurement; Transistors; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1984.1063340
