A new magnetic flux tap for saturation control in planar silicon heads

Planar Silicon Heads (PSH) have been developed in order to offer to the drive industry a modern approach to make heads which are the key component for magnetic recording. Full batch process manufacturing, higher performances and largely open development for the future drive industry are the three main characteristics of these new heads. After a long period of development, industrialization and qualification, these heads are now commercially available. The optimization of PSH improves the write capability with a small gap length. The development of a flux concentrator and its optimization comparing modelling and experimental results enabled us to make a very efficient head. This paper describes the flux concentrator and its optimization.