公开(公告)号：US10311903B2

公开(公告)日：2019-06-04

申请号：US15649961

申请日：2017-07-14

申请人： SAE Magnetics (H.K.) Ltd.

发明人： Seiichi Takayama ,  Takashi Honda ,  Ryuji Fujii ,  Ryo Hosoi ,  Kaichiu Cheung ,  Tsutomu Sasaki ,  Jingtao Lu ,  Fanglong Nie

IPC分类号： G11B5/455 ,  G01R33/12 ,  G11B5/00

摘要： A method of testing dynamic performances for a slider body of a thermally-assisted magnetic head includes: providing a slider body which is disconnected with a light source unit; removably mounting the slider body to a test head suspension assembly; keeping to provide a flat top beam to the slider body, the flat top beam being aligned with the optical waveguide, and a projection of an incident end of the optical waveguide being located within a light spot of the flat top beam; and testing the dynamic performance of the slider body. It can save the material cost and labor cost, and eliminate a precise optical alignment between an input light and an optical waveguide in the slider body to improve testing efficiency.