The Ever Shrinking Hard Disk Drive And Its Components: What Are The Challenges?

Hsia, Yiao-Tee

doi:10.1109/mhs.2006.320313

Cited by 7 publications

(4 citation statements)

References 2 publications

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“…3 [Grochowski & Goglia, 2016] [30]. As the storage density has increased in magnitude [Hsia, 2006] [32] and to maintain low bit error rates [Tang et al, 2007] [33], the clearance between the read/write element and the recording medium is reduced. The flying height has decreased from approximately 20 µm [Sakhalkar et al, 2020] [34] to a few nanometers in hard-disk drives.…”

Section: A Postulates For the Extra Dimensions For Gravitationmentioning

confidence: 99%

Resolving the extra dimensions for gravity

Boyd

2024

Preprint

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The weakness of the force of gravity compared to the electromagnetic force and the other fundamental forces has been referred to as the hierarchy problem. If gravity propagates in several additional spatial dimensions that are large compared to the Planck scale, the hypothesis is that gravity is stronger close-up, e.g., below a certain interaction distance the force of gravity is magnified. In the hard disk drive assembly, the magneto-resistor (MR) read sensor in the head assembly operates within 100nm of the spinning disk surface. Fourteen variable size nano-bumps and nano-pits were fabricated on a magnetic disk platen’s surface designed to be less than the Planck mass 21.77 μgrams. These nano-features were measured over the spinning disk with both piezoelectric and MR sensors. The data was validated using both atomic force microscope (AFM) and magnetic force microscope (MFM) measurements. Results are reviewed and theoretical implications are discussed. The results suggest that the force of gravity is magnified and there are two forms of gravitation. Implications to modified spacetime are discussed.

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Section: A Postulates For the Extra Dimensions For Gravitationmentioning

confidence: 99%

Resolving the extra dimensions for gravity

Boyd

2024

Preprint

View full text Add to dashboard Cite

show abstract

“…3 [Grochowski & Goglia, 2016] [30]. As the storage density has increased in magnitude [Hsia, 2006] [32] and to maintain low bit error rates [Tang et al, 2007] [33], the clearance between the read/write element and the recording medium is reduced. The flying height has decreased from approximately 20 m [Sakhalkar et al, 2020] [34] to a few nanometers in hard-disk drives.…”

Section: B Technology Considerations For Testing the Extra Dimensions...mentioning

confidence: 99%

Resolving the Extra Dimensions for Gravity

Boyd

2024

IEEE Sensors J.

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“…Consideration is needed for the fact that at the time the experimental data was collected in 1997, utilizing circa 1995 components Figure 3 [30]. As storage density has increased in magnitude [32] and to maintain low bit error rates [33] the clearance between the read/write element and the recording medium has been reduced. The flying height has decreased from initially about 20 m [34] to a few nanometers in today's hard disk drives.…”

Section: Figure 3 Areal Density Vs Flying Height [30]mentioning

confidence: 99%

Resolving the extra dimensions for gravity

Boyd¹

2023

Preprint

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<p>The weakness of the force of gravity compared to the electromagnetic force and the other fundamental forces has been referred to as the hierarchy problem. If gravity propagates in several additional spatial dimensions that are large compared to the Planck scale, the hypothesis is that gravity is stronger close-up, e.g., below a certain interaction distance the force of gravity is magnified. In the hard disk drive assembly, the magneto-resistor (MR) read sensor in the head assembly operates within 100nm of the spinning disk surface. Fourteen variable size nano-bumps and nano-pits were fabricated on a magnetic disk platen’s surface designed to be less than the Planck mass 21.77 μgrams. These nano-features were measured over the spinning disk with both piezoelectric and MR sensors. The data was validated using both atomic force microscope (AFM) and magnetic force microscope (MFM) measurements. Results are reviewed and theoretical implications are discussed. The results suggest that the force of gravity is magnified and there are two forms of gravitation. Implications to modified spacetime are discussed.</p>

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The Ever Shrinking Hard Disk Drive And Its Components: What Are The Challenges?

Cited by 7 publications

References 2 publications

Resolving the extra dimensions for gravity

Resolving the extra dimensions for gravity

Resolving the Extra Dimensions for Gravity

Resolving the extra dimensions for gravity

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