Structure and process for production thereof
AssigneeCanon Kabushiki Kaisha
InventorsShigeru Ichihara, Toru Den
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Abstract
A novel structure is provided in which an ordered alloy material is filled in pores of the structure. A process for producing the structure is also provided. The process comprises a first step for forming an alloy in pores of a porous layer, a second step for forming a film composed of a second material on the porous layer, and a third step for heat-treating the porous layer having the film.
Claims21
A process for producing a structure containing an ordered alloy in pores in a porous layer comprising the steps of:
- providing a porous layer-containing member having a porous layer on the surface thereof,
- filling a first material for being comprised in the alloy into pores of the porous layer,
- forming a film containing a second material on the porous layer, and
- heat-treating the member having the film.
A process for producing a structure containing an ordered alloy in pores in a porous layer comprising the steps of:
- providing a porous layer-containing member having a porous layer on the surface thereof,
- filling a first material for being comprised in the alloy into pores of the porous layer,
- forming on the porous layer-containing member a film from a second material for being comprised in the alloy to be connected with the filled first material and to cover the openings of the pores and the other portions of the porous layer than the openings, and heat-treating the porous layer-containing member with the film covering the openings and the other portions than the openings.
A process for producing a structure containing an ordered alloy in pores in a porous layer comprising the steps of:
- providing a porous layer-containing member having a porous layer on a surface,
- filling a first material for being comprised of the alloy in the pores of the porous layer,
- forming a film containing a second material on the porous layer to be in contact with the filled first material, and
- treating the filled first material for formation of an ordered alloy.
A structure having a member having a columnar pores on a substrate and containing a filling in the pores, wherein the filling has a first region and a second region in the depth direction of the columnar pore,
- the first region is an ordered alloy region, and the second region is an ordered alloy region of a lower ordering degree than the first region, non-alloyed region, or a region having an ordered structure different from the first region.
A recording medium having a magnetic layer on a substrate, wherein the magnetic layer is constituted of a first magnetic layer and a second magnetic layer;
- in the first magnetic layer, a first magnetic material is distributed in a non-magnetic material, and in the second magnetic layer, a second magnetic material is continuous.
Dependencies are inferred from the claim text.