Flexible mounting slider with anti-static structure, head gimbal assembly and magnetic disk drive with the same

A head gimbal assembly, comprising

• a suspension;
• and
• a flexible mounting slider provided on the suspension,
• wherein the flexible mounting slider comprising:
• a slider body, the slider body including an air bearing surface, a slider back surface opposite to the air bearing surface and a trailing edge connected with the air bearing surface and the slider back surface, the trailing edge forming a plurality of slider pads thereon;
• an anti-static structure provided on the slider back surface;
• which comprising
• an insulation plate formed on the slider back surface,
• an anti-static plate formed on the insulation plate;
• and
• a grounding element;
• wherein the anti-static plate comprising an insulation layer and an anti-static layer, the grounding element electrically contacting with the anti-static layer of the anti-static plate and the slider back surface simultaneously;
• and
• a lead layer, the lead layer sandwiched between the insulation plate and the insulation layer of the anti-static plate and electrically connected with the slider pads of the slider body.

A disk drive unit, comparing:

• a head gimbal assembly;
• a drive arm connected to the head gimbal assembly;
• a disk;
• and
• a spindle motor to spin the disk;
• wherein the head gimbal assembly comprises a suspension and a flexible mounting slider provided on the suspension, the flexible mounting slider with anti-static structure comprises:
• a slider body, the slider body including an air bearing surface, a slider back surface opposite to the air bearing surface and a trailing edge connected with the air bearing surface and the slider back surface, the trailing edge forming a plurality of slider pads thereon;
• an anti-static structure provided on the slider back surface;
• which comprising
• an insulation plate formed on the slider back surface,
• an anti-static plate formed on the insulation plate;
• and
• a grounding element;
• wherein the anti-static plate comprising an insulation layer and an anti-static layer, the grounding element electrically contacting with the anti-static layer of the anti-static plate and the slider back surface simultaneously;
• and
• a lead layer, the lead layer sandwiched between the insulation plate and the insulation layer of the anti-static plate and electrically connected with the slider pads of the slider body.