inorganic anti reflection coatings prior to shield plating application_number US 59576506 A description the features and description of one embodiment the present invention are best understood while viewing the cross sectional structure views fig1 13 in light of the process block diagram fig1 an alternate embodiment of the present invention is disclosed in fig1 16 fig1 is a schematic block diagram of the process for fabricating a wrap around shield in accordance with an embodiment of the present invention the process begins at step 1402 wherein the layer stack 100 of fig1 is deposited fig1 is a partial cross sectional view looking into the air bearing surface abs of a blanket deposited film stack 100 prior to fabrication of a perpendicular write head with a wrap around shield the film stack comprises blanket layers 102 112 deposited on substrate 114 which is typically alumina at the air bearing surface but may be other materials such as magnetic pole shaping layers deeper further from the abs into the structure for the purposes of this disclosure substrate 114 can be a bulk material on which all subsequent layers are deposited or it can be a layer deposited over previously deposited under layers for example when fabricating a combined read and write head structure the latter is usually the case as the read head structure is generally deposited first not shown layer 112 makes up the magnetic pole material and is typically a laminated multilayer structure comprising layers of magnetic and non magnetic materials above pole layer 112 is gap layer 110 comprised of alumina or other non magnetic materials preferably alumina is used above gap layer 110 is cmp stop layer 109 typically dlc diamond like carbon is used for this layer a spacer layer 108 is deposited above dlc.