1. A method of forming a write pole for a magnetic recording head, the method comprising:
providing a wafer comprising an insulation layer, the insulation layer having an insulator material;
forming a first photomask over the insulation layer, the first photomask providing a first opening over one of at least a yoke region and at least a pole tip region of the write pole to be formed;
performing a first etch process on the insulation layer via the first opening, the first etch process removing the insulator material from a corresponding one of at least the yoke region and at least the pole tip region;
forming a second photomask over the insulation layer, the second photomask providing a second opening over a different one of at least the yoke region and at least the pole tip region of the write pole to be formed than the first opening;
performing a second etch process on the insulation layer via the second opening, the second etch process removing the insulator material from a corresponding one of at least part of the yoke region and at least part of the pole tip region; and
depositing a pole material across the wafer, whereby the yoke region and the pole tip region of the write pole are formed, the pole tip region adjoining the yoke region.
2. The method of claim 1, wherein the insulator material comprises an aluminum oxide.
3. The method of claim 2, wherein the first and second etch processes comprise reactive ion etching of the aluminum oxide.
4. The method of claim 1, wherein the first etch process produces a first sidewall angle in a corresponding one of at least part of the yoke region and at least part of the pole tip region, and the second etch process produces a second sidewall angle in the other one of at least the yoke region and at least the pole tip region, the first sidewall angle being different from the second sidewall angle.
5. The method of claim 1, wherein the second opening comprises an elongated rectangular portion having a width that defines a track width of the write pole.
6. The method of claim 1, wherein a transition region of the write pole where the yoke and pole tip regions are adjoined has a radius of curvature less than about 0.2 micrometers.
7. The method of claim 1 further comprising depositing a sacrificial material to fill a trench in the insulation layer created by the first etch process.
8. The method of claim 7, wherein the sacrificial material is a metal selected from the group consisting of Cu, Ru, and NiFe.
9. The method of claim 7, wherein the sacrificial material is a metal oxide selected from the group consisting of SiO2 and TaO2.
10. The method of claim 7, wherein the second photomask is formed over at least a portion of the sacrificial material.
11. The method of claim 1 further comprising lapping the pole material deposited in the pole tip region.
12. A method of forming a write pole for a magnetic recording head, the method comprising:
providing a wafer comprising an insulation layer;
forming a first photomask over a portion of the insulation layer;
forming a first trench in the insulation layer via the first photomask;
depositing a sacrificial material in the first trench;
planarizing the sacrificial material;
forming a second photomask over a portion of the insulation layer and a portion of the planarized sacrificial material;
forming a second trench in the insulation layer via the second photomask; and
depositing a pole material across the wafer, whereby the first and second trenches are filled with the pole material to form the write pole,
wherein a transition region of the write pole where a yoke region and a pole tip region are adjoined has a radius of curvature less than about 0.2 micrometers.
13. The method of claim 12, wherein the sacrificial material is selected from the group consisting of SiO2, Cu, and NiFe.
14. The method of claim 12, wherein the planarizing comprises a chemical mechanical planarization (CMP).
15. The method of claim 12 further comprising performing a wet etching process to remove at least a portion of the sacrificial material in the first trench.
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 system to provide an always-on embedded anti-theft protection for a platform, the system comprising:
an arming logic to move the platform to an armed mode when receiving an arming command;
a disarming logic to move the platform to an unarmed mode when receiving a disarming command, the disarming logic active while the platform is in a low power state;
a power transition logic to move the system from the low power state to an ON state in response to a user request, the power transition logic to present a log-in screen when the platform is armed, and to move the platform to the ON state without a log-in screen when the platform is unarmed.
2. The system of claim 1, wherein the arming logic moves the system to the armed mode only when the disarming logic does not indicate the presence of the authorized user.
3. The system of claim 1, wherein the power transition logic uses a Basic Input Output System (BIOS). to move the system from the low power state to the ON state.
4. The system of claim 3, wherein the low power state is a hibernation state.
5. The system of claim 1, wherein the power transition logic uses resume logic within the operating system to move the system from the low power state to the ON state.
6. The system of claim 5, wherein the low power state is a standby state, or a connected standby state.
7. The system of claim 1, wherein the disarming command comprises an indication of a presence of an authorized user.
8. The system of claim 7, wherein the presence of the authorized user is determined based on a proximity sensing of a paired user-carried device.
9. The system of claim 7, wherein the presence of the authorized user is indicated through manual action by the authorized user.
10. A system to provide an always-on embedded anti-theft protection for a platform, the system comprising:
a power transition logic to move the platform to a reduced power state, the reduced power state selected from among a standby state, a connected standby state, a hibernate state;
the power transition logic to move the system from the low power state to an ON state in response to a user request;
a disarming logic to disarm the system in response to receiving a disarming command, regardless of the power state; and
the power transition logic to force user authentication when the platform is armed, and to eliminate user authentication when the platform is disarmed.
11. The system of claim 10, further comprising:
an arming logic to move the system to the armed mode in response to an arming command.
12. The system of claim 11, comprises a loss of proximity to the user.
13. The system of claim 10, wherein the power transition logic uses a Basic Input Output System (BIOS). to move the system from the low power state to the ON state when the low power state is a hibernation state.
14. The system of claim 10, wherein the power transition logic uses resume logic within the operating system to move the system from the low power state to the ON stat when the low power state is a standby state, or a connected standby state.
15. The system of claim 10, wherein the disarming command comprises an indication of a presence of an authorized user.
16. The system of claim 15, wherein the presence of the authorized user is determined based on a proximity sensing of a paired user-carried device.
17. The system of claim 15, wherein the presence of the authorized user is indicated through a manual action by the authorized user.
18. A system to provide an always-available theft-security to a platform, the system comprising:
an arming logic to move the platform to an armed mode when receiving an arming command;
a disarming logic to move the platform to an unarmed mode when receiving a disarming command;
a power transition logic to move the system from a hibernation state to an ON state in response to a user request, the power transition logic to enable use of the system without a log-in when the platform is in the unarmed mode.
19. The system of claim 18, wherein the platform moves into the unarmed mode while the platform is in the hibernation state.
20. The system of claim 18, further comprising:
the power transition logic to move the system from a standby or connected standby state to an ON state, the power transition logic to cause a user authentication requirement, when the system is in the armed mode.