Patent ID: 8189295

Claim:
A PMR head having an upper shield and bottom side shielded pole comprising: a substrate; a pair of laterally disposed and separated bottom side shields formed on said substrate, the shields having coplanar ABS front surfaces and transverse, facing, sloping side surfaces; a pair of laterally separated layers of non-magnetic material formed on said lower side shields, the layers having ABS front surfaces coplanar with said side shield ABS front surfaces and transverse, facing, sloping side surfaces coplanar with said sloping side surfaces of said bottom side shields, the separation between said co-planar side surfaces forming a uniform transverse trench having a truncated wedge-shaped cross-sectional shape in the ABS plane and, thereby, forming a similarly shaped opening at said ABS plane, said wedge being widest at the non-magnetic layer surface; a magnetic pole formed over said substrate, said pole having a pole tip formed within said transverse trench and being, therefore, of similar cross-sectional shape as said trench and said pole tip being centrally aligned within said trench and terminating at said ABS surface; an insulating side gap layer formed about lateral and lower sides of said pole tip, separating said pole tip from said substrate and said side shields; a horizontal, planar write gap layer formed over said pole tip and said side shields; an upper shield formed over said write gap layer.