公开(公告)号：SG90188A1

公开(公告)日：2002-07-23

申请号：SG200006269

申请日：2000-10-31

Applicant: IBM

Inventor： ERIC GORDON BAUGH ,  MYRON DALE FLICKNER ,  ROBERT EDWARD FONTANA JR ,  STEPHEN ARNOLD OLSON ,  GURINDER PAL SINGH

IPC: G11B21/24 ,  G11B5/455 ,  G11B5/48 ,  G11B33/10

Abstract: A method and tool for measurement of the roll static attitude and y-misalignment of magnetic recording sliders within the head stack assembly having reference elements placed on the deposited end of the magnetic recording slider, which are optically analyzed by a video camera connected to a computer. For fast measurement the head stack assembly is clamped in a fixture mounted on motorized stages, which move each slider into the measurement position. In a two step imaging and analyzing process, the orientation and location of one or more edges of the reference element are computed and compared with known control parameters.