Hitachi Global Storage Technologies Netherlands B.v.

Jingjing Zhang

Shaoyong Liu

Yi Zhao Yao

Sivalingam Marimuthu

Kelvin Kor Seng Ang

Kor Seng Kelvin Ang

A system and method for detecting a defect in an actuator arm conductor coil is disclosed. An actuator arm including a conductor coil is received. The conductor coil is coupled with a voltage as an anode. The conductor coil is submerged into a first solution, the first solution having no organic matter therein. The first solution is then coupled with a second solution including an organic indicator. The second solution also includes a cathode coupled to the voltage such that a defect in an insulation layer of the conductor coil is indicated by the organic indicator.

Conductor coil defect identifier

Embodiments of the present invention include a method for quantitatively detecting embedded particles of a disk spacer ring comprising. The method includes dissolving a layer of a disk spacer ring into a liquid solution, the disk spacer ring layer comprising embedded particles. The method further includes filtering the solution to capture the embedded particles. The method further includes counting the particles.

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Singapore, Singapore

Jingjing Zhang