US 7,882,616 B1Granted

Manufacturing single-sided storage media

AssigneeSeagate Technology LLC

InventorJoseph Allen

Life of this patent

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Abstract

In one embodiment, a method can include providing first and second intermediate structures, each having first and second surfaces. Also, the method can include placing the first surface of the first intermediate structure adjacent to the first surface of the second intermediate structure, such that the first and second intermediate structures are in a stacked relationship. Additionally, the method can include simultaneously removing at least a portion of each of the second surfaces of the first and second intermediate structures while in the stacked relationship. Furthermore, the method can include forming a plating layer on each of the first and second surfaces of each of the first and second intermediate structures. Moreover, the method can include forming a magnetic layer on the second surface but not the first surface of each of the first and second intermediate structures.

Claims19

Dependent claims

A method comprising:

(a) providing first and second intermediate structures, each intermediate structure having first and second surfaces;
(b) placing the first surface of the first intermediate structure adjacent to the first surface of the second intermediate structure, such that the first and second intermediate structures are in a stacked relationship;
(c) simultaneously removing at least a portion of each of the second surfaces of the first and second intermediate structures while in the stacked relationship resulting in the first surface in each of the first and second intermediate structures having a first degree of roughness that is greater than a second degree of roughness of the second surface of each of the first and second intermediate structures;
(d) after the simultaneously removing, forming a plating layer on each of the first and second surfaces of each of the first and second intermediate structures;
and
(e) after the simultaneously removing, forming a magnetic layer on the second surface but not the first surface of each of the first and second intermediate structures.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/215,207Filed 29 Aug 2005 · us provisional application
Priority: 2 Sep 2004
Granted: 8 Feb 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

G11B 5/82
Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum: disk carriers
G11B 5/7373
Non-polymeric layer under the lowermost magnetic recording layer: non-magnetic single underlayer comprising chromium
G11B 5/73911
Magnetic recording media substrates: inorganic substrates
G11B 5/73913
Inorganic substrates: composites or coated substrates