US Patent 8446695 Suspension ring gimbal having forwardly extending torsion arms

For decreased pitch and roll stiffness, a ring gimbal suspension for a hard disk drive has torsion arms that extend toward the distal end of the suspension as they extend inward from the gimbal outer arms toward the slider bond pad. The torsion arms connect to the slider bond pad at a location that is distal of the dimple contact point. The electrical circuit traces are generally free of stainless steel except where the circuit traces cross the torsion arms, at which point they are affixed to the torsion arms. The electrical circuit traces can include an outward meander away from the slider bond pad as the traces pass over the torsion arms, for additional reduction in stiffness.