Data writer coil heater
A data writer may suspend a transducing head from an actuator. The transducing head can consist of a writer coil positioned proximal a write pole. A protruding signal may be passed through the write coil to contact a data storage medium with the transducing head. A write signal can be passed through the write coil to write a data bit on the data storage medium.
1. An apparatus comprising a transducing head suspended from an actuator, the transducing head comprising a writer coil positioned proximal a write pole and configured as a continuous loop extending from an air bearing surface (ABS) of the transducing head, the transducing head positioned in contact with a data storage medium in response to a protruding signal passing through the write coil.
2. The apparatus of claim 1 , wherein the transducing head comprises a laser as part of a heat assisted magnetic recording (HAMR) structure.
3. The apparatus of claim 1 , wherein the write coil has a notch positioned distal the ABS.
4. The apparatus of claim 3 , wherein the notch is separated from the ABS by multiple writer coil turns.
5. The apparatus of claim 3 , wherein the notch has a rectangular shape with a plurality of continuously linear sidewalls.
6. The apparatus of claim 1 , wherein the notch reduces first and second thicknesses of first and second turns of the writer coil.
7. A method comprising:
suspending a transducing head from an actuator, the transducing head comprising a writer coil positioned proximal a write pole and configured as a continuous loop extending from an air bearing surface (ABS) of the transducing head;
passing a protruding signal through the write coil; and
contacting a data storage medium with the transducing head in response to the protruding signal passing through the write coil.
8. The method of claim 7 , wherein the protruding signal has an increasing amplitude over time.
9. The method of claim 8 , wherein the protruding signal is adjusted to a second amplitude to separate the transducing head from the data storage medium.
10. The method of claim 7 , wherein the protruding signal is adjusted to maintain a separation distance between the transducing head and the data storage medium.
11. The method of claim 7 , wherein the protruding signal is adjusted to contact the data storage medium with the transducing head for less than a second.
12. The method of claim 7 , wherein the protruding signal is adjusted in response to a transducing head temperature.
13. The method of claim 7 , wherein the protruding signal is greater than a write signal corresponding to writing a data bit on the data storage medium.
14. A method comprising:
suspending a transducing head from an actuator, the transducing head comprising a writer coil positioned proximal a write pole and configured as a continuous loon extending from an air bearing surface (ABS) of the transducing head;
passing a protruding signal through the write coil;
contacting a data storage medium with the transducing head in response to the protruding signal passing through the write coil; and
writing a data bit on the data storage media by passing a write signal through the write coil.
15. The method of claim 14 , wherein the protruding signal is an alternating current voltage with a greater amplitude than the write signal.
16. The method of claim 14 , wherein the write signal is passed through the write coil while the transducing head is separated from the data storage medium.
17. The method of claim 16 , wherein the write signal is less than the protruding signal.
18. The method of claim 14 , wherein the transducing head does not have an independent heater circuit.
19. The method of claim 14 , wherein the write coil currently alters the position of the transducing head with respect to the actuator and writes the data bit.