Glide head for detecting defects on a disk surface
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Oct 31, 2000
Grant Date -
N/A
app pub date -
Jun 5, 1998
filing date -
Jun 5, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A glide head for testing the surface of a magnetic disk includes a slider, a type 2 piezo-electric transducer mounted on the slider, and a type 1 piezo-electric transducer mounted on the type 2 piezo-electric transducer. The piezo-electric transducers are mechanically coupled to one another but not electrically coupled to one another. The electrical voltage provided by the type 2 piezo-electric transducer is more sensitive to magnetic disk surface defects than if the type 1 piezo-electric transducer were not present.
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