Pedestal defined zero throat writer having a recessed pedestal
View Patent ↗A method and system for providing a pedestal defined zero throat write head is disclosed. The method and system include providing a first pole having a pedestal, providing a gap and providing a second pole. The first pole has a pedestal. The gap separates the pedestal of the first pole from a portion of the second pole. The pedestal has a front, a back, a top and a bottom. The back of the pedestal has a recess therein, which runs from the top of the pedestal to the bottom of the pedestal.
1. A pedestal defined zero throat write head comprising:
a first pole having a pedestal, the pedestal having a front, a back, a top and a bottom, the back of the pedestal having a recess therein, the recess running from the top of the pedestal to the bottom of the pedestal;
a second pole;
a gap separating the pedestal of the first pole from a portion of the second pole;
wherein the second pole has a bottom surface, a portion of the bottom surface extending over the pedestal and along the gap beyond the back of the pedestal and being substantially flat such that a zero throat height of the write head is defined by the pedestal.
2. The pedestal defined zero throat write head of claim 1 wherein the recess includes a first edge and a second edge, the first edge and the second edge being directly under a portion of the second pole.
3. The pedestal defined zero throat write head of claim 1 wherein the recess includes a first edge and a second edge, the first edge and the second edge being outside of the second pole.
4. The pedestal defined zero throat write head of claim 1 wherein the second pole further includes a nose and wherein a portion of the pedestal is directly under the nose.
5. The pedestal defined zero throat write head of claim 1 further comprising:
at least one coil between the first pole and the second pole.
6. The method of claim 1 wherein the second pole providing step (c) further includes the step of:
(c2) providing a nose such that a portion of the pedestal is directly under the nose.
7. A method for providing pedestal defined zero throat write head comprising the steps of:
(a) providing a first pole having a pedestal, the pedestal having a front, a back, a top and a bottom, the back of the pedestal having a recess therein, the recess running from the top of the pedestal to the bottom of the pedestal;
(b) providing a gap above the pedestal;
(c) providing a second pole, the gap separating the pedestal from a portion of the second pole;
wherein the second pole providing step (c) further includes the step of:
(c1) providing the second pole such that the second pole has a bottom surface, a portion of the bottom surface extending over the pedestal and along the gap beyond the back of the pedestal and being substantially flat such that a zero throat height of the write head is defined by the pedestal.
8. The method of claim 7 wherein the first pole providing step (a) further includes the steps of:
(a1) depositing the pedestal; and
(a2) removing a portion of the pedestal to provide the recess.
9. The method of claim 7 wherein the first pole providing step (a) further includes the step of:
(a1) providing the recess having a first edge and a second edge such that the first edge and the second edge are directly under a portion of the second pole.
10. The method of claim 7 wherein the first pole providing step (a) further includes the step of:
(a1) providing the recess having a first edge and a second edge such that the first edge and the second edge are outside of the second pole.
11. The method of claim 7 further comprising the step of:
(d) providing at least one coil between the first pole and the second pole.