Pole structure to relieve adjacent track writing
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, a second pole and a gap separating the pedestal of the first pole from a portion of the second pole. The pedestal has a front, a back and a notch. The gap has a first portion and a second portion. The first portion of the gap is in proximity to front of the pedestal. The second portion of the gap is in proximity to the back of the pedestal. The first portion of the gap is thinner than the second portion of the gap.
1. A pedestal defined zero throat write head comprising:
a first pole having a pedestal, the pedestal including a notch, the notch having a front and a back;
a second pole;
a gap separating the notch of the first pole from a portion of the second pole, the gap having a first portion and a second portion, the first portion of the gap being between the front of the notch and the second pole, the second portion of the gap being between the back of the notch and the second pole, the first portion of the gap being thinner than the second portion of the gap;
wherein the second portion of the gap has a top and a bottom, the top of the second portion of the gap being substantially parallel to the bottom of the second portion of the gap.
2. pedestal defined zero throat write head comprising:
a first pole having a pedestal, the pedestal including a notch, the pedestal having a front and a back;
a second pole;
a gap separating the notch of the first pole from a portion of the second pole, the gap having a first portion and a second portion, the first portion of the gap being in proximity to the front of the pedestal, the second portion of the gap being in proximity to the back of the pedestal, the first portion of the gap being thinner than the second portion of the gap;
wherein the second portion of the gap has a top and a bottom, the top of the second portion of the gap being substantially parallel to the bottom of the second portion of the gap;
wherein the notch further includes a top along the gap, the top of the notch being recessed along the second portion of the gap.
3. A pedestal defined zero throat write head comprising:
a first pole having a pedestal, the pedestal including a notch, the pedestal having a front and a back;
a second pole;
a gap separating the notch of the first pole from a portion of the second pole, the gap having a first portion and a second portion, the first portion of the gap being in proximity to the front of the pedestal, the second portion of the gap being in proximity to the back of the pedestal, the first portion of the gap being thinner than the second portion of the gap;
wherein the second portion of the gap has a top and a bottom, the top of the second portion of the gap being substantially parallel to the bottom of the second portion of the gap;
wherein the second pole includes a bottom interface along the gap, the bottom of the second pole being recessed along the second portion of the gap.
4. A pedestal defined zero throat write head comprising:
a first pole having a pedestal, the pedestal including a notch, the pedestal having a front and a back;
a second pole;
a gap separating the notch of the first pole from a portion of the second pole, the gap having a first portion and a second portion, the first portion of the gap being in proximity to the front of the pedestal, the second portion of the gap being in proximity to the back of the pedestal, the first portion of the gap being thinner than the second portion of the gap;
wherein the second portion of the gap has a top and a bottom, the top of the second portion of the gap being substantially parallel to the bottom of the second portion of the gap;
wherein the notch further includes a top along the gap and the second pole includes a bottom along the gap, the top of the notch and the bottom of the second pole being recessed at the second portion of the gap.
5. The pedestal defined zero throat write head of claim 4 wherein the notch has a first height near the front of the pedestal and a second height near the back of the pedestal, the second height being less than the first height.
6. The pedestal defined zero throat write head of claim 4 wherein the notch has a first width near the front of the pedestal and a second width near the back of the pedestal, the first width being less than the second width.
7. A pedestal defined zero throat write head comprising:
a first pole having a pedestal, the pedestal including a notch, the pedestal having a front and a back;
a second pole;
a gap separating the notch of the first pole from a portion of the second pole, the gap having a first portion and a second portion, the first portion of the gap being in proximity to the front of the pedestal, the second portion of the gap being in proximity to the back of the pedestal, the first portion of the gap being thinner than the second portion of the gap;
wherein the second portion of the gap has a top and a bottom, the top of the second portion of the gap being substantially parallel to the bottom of the second portion of the gap;
wherein the first portion of the gap has a first top and wherein the top of the second portion of the gap is substantially parallel to the first top.
8. The pedestal defined zero throat write head of claim 1 wherein the first portion of the gap has a first bottom and wherein the bottom of the second portion of the gap is parallel to the first bottom.