Authors: Yijun Man Bo Liu Mingsheng Zhang Leonard Gonzaga
Publish Date: 2009/02/19
Volume: 15, Issue: 10-11, Pages: 1515-1520
Abstract
In this study a new type of femto slider Panda IV with improved force arrangement and higher air pressure/higher stiffness at trailing edge of the slider was evaluated and compared experimentally with our previous type of femto sliders Panda II and III The evaluations were conducted on the Candela 5100 Optical Surface Analyzer OSA with the VENA CSS/load–unload system attached Disks coated with a layer of 12 nm lubricant were specially prepared with a lubricant step for the comparison tests Flying height FH of each slider was calibrated by bump disk with 35 nm bump height for maintaining the consistent FH during the tests The relative amount of lubricant redistribution was analyzed with an OSA immediately after each slider is flown ontrack for a period of time It is found that the amount of lubricant transferred or the slider–lubricant interaction are minimized by reducing the size of slider’s central trailing pad Finally possible explanations on the lubricant transfer are discussed
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