Patent ID: 7619856

Claim:
A head gimbal assembly comprising: a lead wire having a lead pad with a connection surface; a head/slider having a slider pad configured to be soldered to said connection surface of said lead pad with use of a solder ball, a restraining portion being provided in said slider pad, said restraining portion comprising a groove formed in the surface of said slider pad, wherein said groove is wider at a position thereof close to an air bearing surface of said head/slider than at a position thereof close to a fixing surface of said head/slider, said restraining portion restraining rotation and movement of said solder ball while being supported by a surface of said slider pad and said connection surface of said lead pad; a flexure configured to support said head/slider; and a load beam configured to support said flexure, wherein said connection surface is formed as a flat surface to allow removal of solder adhered thereto and reuse of the lead pad.