A probe for a data storage apparatus. The probe includes a coating layer formed on a tip of the probe, wherein a peak of the tip is exposed and the coating layer and the peak form a predetermined contact area with respect to a recording medium. In addition, the probe may also include an insulating layer...http://www.google.com.tw/patents/US7663094?utm_source=gb-gplus-share專利 US7663094 - Probe for data storage apparatus