Drive integration challenges for perpendicular recording

Lambert, S.E.; Lairson, B. M.; Nguy, Hai; Nguyen, L.; Huang, Ton; Adler, J.; Gopalaswamy, S.

doi:10.1016/s0304-8853(01)00353-5

Cited by 21 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was verified in Ref. [10] in a spin-stand level measurement. Common countermeasures consist of: reducing the size of the yoke, using a separate magnetic shield in the vicinity of the write pole.…”

Section: External Field Sensitivitysupporting

confidence: 64%

Perpendicular integration challenges

Guarisco¹,

Wu²,

Luo³

et al. 2005

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

Section: External Field Sensitivitysupporting

confidence: 64%

Perpendicular integration challenges

Guarisco¹,

Wu²,

Luo³

et al. 2005

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

“…In this study, probe layer material with thickness of 0.2-0.3 m and write track widths of 0.2-0.3 m were made, as shown in Table I. Write-pole aspect ratios equal to or less than one were thus achieved to ensure minimal side writing at large skew angles [9]. Sharp and flat trailing edges at the probes (P3) were achieved by thin film deposition and no chemical mechanical lapping (CMP) was required [10].…”

Section: A Basic Probe Head Design and Modelingmentioning

confidence: 99%

“…Excellent field gradients of greater than 90 Oe/nm can be achieved for square poles of 0.2 and 0.15 m. Good field gradients of about 85 and 75 Oe/nm can also be obtained with square poles of 0.12 and 0.1 m, respectively. In order to further optimize the writing performance at higher densities, other designs, such as trapezoidal poles, may be needed [9].…”

Section: B Extendibility Of Advanced Probe Head Designmentioning

confidence: 99%

Advanced probe head for perpendicular recording

et al. 2002

View full text Add to dashboard Cite

Basic design and recording performance of the advanced probe heads are described. Excellent writability of the advanced probe heads is demonstrated by a series of overwrite (OW) and nonlinear transition shift (NLTS) saturation measurements. Write currents as low as 5 mA o p are required for recording. Excellent OW can be obtained with both high and low OW ratios. Media with vibrating sample magnetometry coercivities as high as 7000 Oe can be recorded with OW of 30 dB. Better than 14 dB of NLTS was measured at a linear density of 600 kfci. Minimal side-writing has been observed using the advanced probe heads with square pole shape. External field sensitivity of the advanced probe heads has also been shown to be excellent as larger than 58 Oe of external field is required to erase a low density signal on a 3380-Oe disk. Modeling results also show that the basic architecture of advanced probe head is extendible to 0.1-m square pole.Index Terms-Finite-element model, high areal density magnetic recording, perpendicular recording.

show abstract

“…Preliminary investigation of the cylindrical magnetic storage system used single-layered perpendicular media and merged giant magneto-resistive (GMR) heads with one-pad-type sliders designed for use with cylindrical media [1][2][3]. Cylindrical media are expected to overcome the writing problems at high areal densities caused by write-head skew angle [4] by using linear actuators for the read/write heads and limitation on multiple-head designs arising from speed differences between the inner and outer diameter of conventional disks. The ultimate aim is the realization of 1 Tbit/in 2 , 2 Gbit/s perpendicular magnetic recording.…”

Section: Introductionmentioning

confidence: 99%