1. A side shield structure in a perpendicular magnetic recording (PMR) write head having a main pole layer with a write pole having top and bottom surfaces terminating at a pole tip at an air bearing surface (ABS) wherein said write pole is further comprised of two sides that each connect to a side of a flared portion of the main pole layer at a neck height (NH) distance from the ABS, comprising:
(a) a first side shield section formed on either side of the write pole, said first side shield section has a first side along the ABS, a second side connected to the first side and facing a side of the write pole, a third side formed perpendicular to the ABS and at a greater distance from the write pole than the second side, and a fourth side opposite the first side;
(b) a first non-magnetic gap layer with a certain thickness and having a top surface and bottom surface which are formed along planes that are parallel to the ABS, said bottom surface adjoins the fourth side of a first side shield section and said top surface adjoins a first side of a second side shield section on either side of the write pole;
(c) a second non-magnetic gap layer that is formed along either side of the write pole and flared portion of the main pole layer, said second non-magnetic gap layer provides a first gap distance between a side of the write pole and a second side of the first side shield section, and provides a second gap distance between the sides of the flared portion and the second shield section; and
(d) a second side shield section formed on either side of the flared portion of the main pole layer, said second side shield section has a first side parallel to the ABS and contacts the first non-magnetic gap layer, a second side formed parallel to a side of the flared portion of the main pole layer, a third side coplanar with a third side of the first side shield section, and a fourth side opposite the first side of the second side shield section.
2. The side shield structure of claim 1 wherein the first side shield section has a height which is the distance between the first and fourth sides, said first side shield height (SSH1) is defined by the equation SSH1<(0.6\xd7NH)+0.08 microns.
3. The side shield structure of claim 1 wherein the main pole layer, first side shield section, and second side shield section are comprised of CoFe, CoFeNi, NiFe, or a material that is Co based and amorphous.
4. The side shield structure of claim 1 wherein the first gap distance is from about 0.05 to 0.3 microns.
5. The side shield structure of claim 1 wherein the second gap distance is from about 0.1 to 0.5 microns.
6. The side shield structure of claim 1 wherein the first non-magnetic gap layer has a thickness between about 0.05 and 0.3 microns.
7. The side shield structure of claim 1 wherein the first non-magnetic gap layer and second non-magnetic gap layer are comprised of alumina or another dielectric material.
8. The side shield structure of claim 1 wherein a first side shield section on one side of the write pole is magnetically connected to a first side shield section on the other side of the write pole by a trailing shield formed along the ABS.
9. The side shield structure of claim 8 wherein the trailing shield is separated from the top surface of the write pole by a write gap layer.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for remediating a spilled petroleum lipophilic product, comprising the steps of:
contacting a wax with a lipophilic material; and
allowing said wax to chemical bond with said lipophilic material to form a solid bond, thereby facilitating ready removal and pacification of said spilled petroleum product.
2. A system for capturing and reclaiming a petroleum spill, comprising the steps of:
contacting a liquefied wax to a spilled petroleum product at a temperature above a transformation temperature; and
allowing said liquid wax to traverse said transformation temperature and transform to a solid capturing said spilled petroleum in a solid form, thereby facilitating ready removal and pacification of said spilled petroleum product.