Calibration of Laser Scribe Force Using Finite Element Method

유한요소법을 이용한 레이저 화선력의 보정

  • 정철섭 (건양대학교 기계공학과)
  • Published : 2007.12.31

Abstract

Accurately controlling the shape of the read/write head structure is critical in the performance of a modem hard disk drive. The sliders investigated are composed of alumina and titanium carbide(AITiC) and act as an air bearing when passing over the disks. Controlling the curvature of the slider is of primary importance. A laser scribing system that produces curvature by inducing residual stress into the slider can be utilized. Predicting the curvature created by a pattern of scribes is of great importance to increase the control over the sliders' shape. The force system that produces stresses similar to the laser scribing is applied to the finite element analysis model. The curvatures created by the force system are calibrated to experimental measurements.

Keywords

slider;laser scribing;curvature;force system;finite element analysis