Magnetic head with mini-outriggers and method of manufacture
View Patent ↗An exemplary magnetic head assembly for use with magnetic recording media is provided. In one example, a head includes a data island associated with at least one data transducer, the data island having a width along a direction of media transport and a radius of curvature. The magnetic head further includes a mini-outrigger placed adjacent to the data island and separated by a void, wherein a width of the mini-outrigger along the direction of media transport is less than the width of the data island. Additionally, in one example, the radius of curvature of the mini-outrigger is less than the radius of curvature of the data island. The wrap angle of magnetic storage tape to the data island may be less than 3 degrees. Further, the radius of curvature of the mini-outrigger may be less than one-half the radius of curvature of the data island.
1. A magnetic head for writing to and/or reading from magnetic storage media as it passes thereover, the head comprising:
a data island associated with at least one data transducer, the data island having a width along a direction of media transport and a radius of curvature; and
a mini-outrigger placed adjacent to the data island and separated by a void, wherein a width of the mini-outrigger along the direction of media transport and a radius of curvature of the mini-outrigger are less than the width and radius of curvature of the data island.
2. The magnetic head of claim 1 , wherein a wrap angle of storage media as supported by the mini-outrigger to the data island is less than 3 degrees.
3. The magnetic head of claim 1 , wherein a wrap angle of storage media as supported by the mini-outrigger to the data island is less than 1 degree.
4. The magnetic head of claim 1 , wherein a wrap angle of the storage media as supported by the mini-outrigger to the data island is less than 0.5 degrees.
5. The magnetic head of claim 1 , wherein the radius of curvature of the mini-outrigger is less than one-half the radius of curvature of the data island.
6. The magnetic head of claim 1 , wherein the radius of curvature of the mini-outrigger is less than one-third the radius of curvature of the data island.
7. The magnetic head of claim 1 , wherein the radius of curvature of the mini-outrigger is less than one-quarter the radius of curvature of the data island.
8. The magnetic head of claim 1 , wherein the data island and the mini-outrigger are separated by approximately 10 to 50 milli inches.
9. The magnetic head of claim 1 , wherein the width of the mini-outrigger is between 3 and 8 milli-inches, and the width of the data island is between 10 and 40 milli-inches.
10. The magnetic head of claim 1 , wherein the data transducer comprises a magneto resistive element.
11. The magnetic head of claim 1 , further including a primary outrigger.
12. The magnetic head of claim 11 , further including a mini-outrigger adjacent the primary outrigger and separated by a void.
13. A multi-island magnetic recording head for writing to and/or reading from magnetic storage media as it passes thereover, comprising:
a first data island associated with a first data transducer;
a first pair of mini-outriggers disposed on opposite sides of the first data island along a direction of tape transport, wherein the first pair of mini-outriggers are positioned to effect a wrap angle of magnetic storage media to the first data island of less than 3 degrees;
a second data island associated with a second data transducer; and
a second pair of mini-outriggers disposed on opposite sides of the second island along a direction of tape transport, wherein the radius of curvature of the first and second pair of mini-outriggers is less than one-half the radius of curvature of the first and second data islands.
14. The head of claim 13 , further including primary outriggers disposed at the leading and trailing edge of the head.
15. The head of claim 13 , wherein the wrap angle is less than 1 degree.
16. The head of claim 13 , wherein the wrap angle is less than 0.5 degrees.
17. The head of claim 13 , wherein the first data island and each of the first pair of mini-outriggers are separated by approximately 10 to 50 milli inches.
18. The head of claim 13 , wherein a width of the first pair of mini-outriggers along a direction of tape transport is between 3 and 8 milli-inches, and a width of the first data island along a direction of tape transport is between 10 and 40 milli-inches.