Patent ID: 8179745

Claim:
A head gimbal assembly, comprising: a gimbal provided with a tongue comprising a stage; a sub-mount comprising a laser diode, wherein said laser diode is disposed internally in said sub-mount, and wherein said sub-mount is mounted on said stage; a head slider for thermally assisted recording, wherein said head slider is disposed on said sub-mount; a first piezoelectric element which expands and contracts in a forward and backward directions, is positioned on a back side opposite a sub-mount installation surface of said stage in said tongue, and comprises a front connecting pad and a back connecting pad; a second piezoelectric element which expands and contracts in the forward and backward directions, is positioned in a line with said first piezoelectric element on the back side opposite the sub-mount installation surface of said stage in said tongue, and comprises a front connecting pad and a back connecting pad; and a plurality of lead wires formed on said gimbal that comprise one end connected to a connecting pad of said sub-mount, separate to a left and a right in front of said sub-mount, detour around an installation region of said sub-mount and advance to the back, pass between the installation region of said sub-mount and the front connecting pad of said first piezoelectric element and the front connecting pad of said second piezoelectric element and advance to a center, and pass between the front connecting pad of said first piezoelectric element and the front connecting pad of said second piezoelectric element and advance to the back.