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TeraStor Near Field |
Characteristic |
Winchester |
Magneto Opticall |
Near Field |
Media |
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Substrate | Aluminum/Glass |
Glass/Plastic |
Plastic |
Recording Surface | Top |
Bottom |
Top |
Tracks defined by | Servo Track Writer (STW) |
Stamped |
Stamped or STW |
Drive |
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Write/Read Technology | Magnetic Field |
Far Field |
Near Field |
Writing Process | Coil Switching |
Constant Coil |
Coil Switching |
Writing Limit | Induction/Gap |
Objective Lens |
Solid Immersion Lens (SIL) |
Reading Process | Inductive, MR |
Kerr Effect |
Kerr Effect |
Head Spacing Servo Required | No |
Yes |
No |
Read Channel | PRML |
PWM |
PRML |
Direct Overwrite | Yes |
No |
Yes |
Known Density Limits | Super Paramagnetic Limit |
Laser Wavelength |
Orders of Magnitude Beyond |
Major Capacity Enabler and Limiter | Flux sensor |
Objective Lens |
Solid Immersion Lens (SIL) |
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