The invention aims to provide a phosphor thin film eliminating a need for filters, having a satisfactory color purity and useful as the blue color in full-color EL displays, a method for preparing the same and an EL panel. In one embodiment, the flip-chip contacts are surrounded by an electrically insulating layer as underfill material, the layer having a UV B-stageable material. The traffic between an RBS and an RNC comprises a number of flows. The first and second interlocking closure members and third and fourth interlocking closure members extend a length from the first, second, third and fourth base strips sufficient for the first and third interlocking closure members and the second and fourth interlocking closure members to selectively engage. The method and apparatus provide a foil directing an air flow within the head disk assembly about a pad of the air bearing; re-directing the air flow towards a trailing edge of the pad so that the airflow impinges the trailing edge, thus dislodging and removing contaminants from the trailing edge of the pad. The second isolation region is disposed between the second source region and the body contact region.