An experiment study of fly height was performed to observe how the head-disk spacing after loading-unloading the head from the ramp onto the disk on the spin-stand *** fly height of write and read operation were analy...
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An experiment study of fly height was performed to observe how the head-disk spacing after loading-unloading the head from the ramp onto the disk on the spin-stand *** fly height of write and read operation were analyzed by calculated from the power *** heater resistance of write and read were collected during *** of the test 190,000 cycles of loading/unloading showed,the fly height of write increased more than the *** fly height of all heads showed increasing *** the lube pick up on head and accumulation lube on the disk about 20%.The heater resistance of write and read were quite standing.
An experiment was performed to study head degradation from mechanical stress on spin-stand testing. The degradation of electrical performance was measured by Resistance, Amplitude and Bit Error Rate performance. Mecha...
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An experiment was performed to study head degradation from mechanical stress on spin-stand testing. The degradation of electrical performance was measured by Resistance, Amplitude and Bit Error Rate performance. Mechanical stress was represented by loading and unloading the head under the disk by tilting the stand up or down. Scratching, wearing and weakness ensued from mechanically induce vibration to the head. Results of the test showed, the resistance gradually increased, BER performance degraded and amplitude decreased. Observing the air bearing surface of heads showed wear especially at the transducer area.
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