Press system with interleaved embossing foil holders for nano-imprinting of recording media
Methods of operating a recording media press system are described. The method may include clamping, with a plurality of first tabs, an outer perimeter portion of a first embossing foil to a first die of a die press and clamping with a plurality of second tabs, an outer perimeter portion of a second embossing foil to a second die of the press. The method may also include receiving a magnetic recording disk in the die press, interleaving the plurality of first tabs with the plurality of second tabs to close the die press around the magnetic recording disk, and pressing the first and second embossing foils against the recording media disk to emboss a front and backside of the recording disk with a discrete track recording pattern.
1. An imprinting method, comprising:
clamping, with a plurality of first tabs, an outer perimeter portion of a first embossing foil to a first die of a die press;
clamping with a plurality of second tabs, an outer perimeter portion of a second embossing foil to a second die of the press;
receiving a magnetic recording disk in the die press;
interleaving the plurality of first tabs with the plurality of second tabs to close the die press around the magnetic recording disk; and
pressing the first and second embossing foils against the recording disk to emboss a front and backside of the recording disk with a discrete track recording pattern.
2. The method as in claim 1 , wherein the plurality of first tabs extend radially inward from the first die to clamp first portions of the outer perimeter of the first embossing foil against a surface of the first die, and wherein the plurality of second tabs extend radially inward from the second die to clamp second portions of the outer perimeter portion of the second embossing foil against a surface of the second die, and wherein the first and second outer perimeter portions are complementary arc segments to interdigitate the plurality of first tabs with the plurality of second tabs when the press is closed.
3. The method as in claim 2 , wherein interleaving the plurality of first tabs between the plurality of second tabs further comprises closing the die set with the interdigitated first and second tabs spaced apart to have an edge of a first tabs adjacent to an edge of a second tab.
4. The method as in claim 1 , wherein the clamping with the plurality of first tabs allows the outer perimeter portion of the first embossing foil to slide against the first die, and wherein the clamping with the plurality of second tabs allows the outer perimeter portion of the second embossing foil to slide against the second die.