Magnetic transfer method and magnetic transfer device

Details Magnetic transfer method and magnetic transfer device Magnetic transfer method and magnetic transfer device

2005-06-21

2005-06-21

Elms, Richard (Department: 2824)

Static information storage and retrieval

Systems using particular element

Magnetic thin film

C365S232000, C365S171000

Reexamination Certificate

active

06909634

ABSTRACT:
In a magnetic transfer master carrier, as a substrate, one having a Young's modulus E (GPa) in the range of 85 to 250 is used. Magnetic transfer is performed under conditions in which 2≦αEd3/{P(S2/S1)}≦400 (where the constant α=7.37×109) is satisfied, where d (m) is the thickness of the substrate from the bottom face of a recessed portion to the back face, S1(m2) is the total area of the cross sections of the projected portions which are parallel to the plane of the substrate at a height of 50% of Dmax from the bottom face of the recessed portion when the height from the bottom face of the recessed portion to the top face of a projected portion is denoted by Dmax, S2(m2) is the total area of the bottom faces of the recessed portions and the cross sections of the projected portions at the positions of the relevant bottom faces, and P (MPa) is the tight contact pressure between the master carrier and the slave medium at the time of magnetic transfer.

REFERENCES:
patent: 2002/0034107 (2002-03-01), Saito
patent: 2002/0075583 (2002-06-01), Ishida et al.
patent: 2003/0076611 (2003-04-01), Usuki et al.
patent: 63-183623 (1988-07-01), None

Affiliated with

Also associated with

Rating

Magnetic transfer method and magnetic transfer device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic transfer method and magnetic transfer device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic transfer method and magnetic transfer device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3492715