Apparatus and method for automated manufacturing of magnetic structures as rare-earth replacements

Patent metadata

Field	Value
Publication number	US-2023085159-A1
Application number	US-202217945756-A
Country	US
Kind code	A1
Filing date	Sep 15, 2022
Priority date	Sep 15, 2021
Publication date	Mar 16, 2023
Grant date	—

Abstract

An apparatus and method of fabricating magnetic structures utilizing nanocomposites to build bulk magnetic materials, with controlled magnetic alignments are provided. The method includes application of an editing tool, such as a laser, for patterning an editable structure that mounted on an electrically conductive substrate and filling the pattern with solid materials to create the magnetic structures.

First claim

What is claimed:

1 . An apparatus for producing magnetic structures comprising:
an editing tool, an editable structure in close proximity to an electrode structure, in which patterns are generated in the editable structure, wherein pattern generation accomplished at least in part by the editing tool, and wherein hollow portions in at least one of the generated patterns are filled entirely or partially by solid materials at least in part via electrodeposition from electrically conductive fluids, gases, or plasmas using the electrode structure as an electrode, and magnetic materials are deposited onto the solid materials, the, wherein magnetic materials constitute produced magnetic structures.

2 . The apparatus of claim 1 , wherein the editing tool is a laser.

3 . The apparatus of claim 1 , wherein the editing tool, editable structure, and the electrode structure are in a single container, and wherein a heating or magnetizing element is incorporated into the single container.

4 . The apparatus of claim 1 , where the magnetic structures are removable from the electrode structure.

5 . The apparatus of claim 11 , wherein the editing tool is a discharge-forming electrode.

6 . The apparatus of claim 1 , wherein the electrode structure contains titanium.

7 . The apparatus of claim 1 , wherein the editable structure contains polyimide.

8 . The apparatus of claim 1 , wherein at least one of the electrically conductive fluids contain surfactant.

9 . The apparatus of claim 1 , wherein fluids for electrodeposition are transported into and out of a single container containing the editable structure.

10 . The apparatus of claim 1 , wherein some of the deposited magnetic materials interact with other deposited magnetic materials via exchange interactions.

11 . The apparatus of claim 1 , wherein macroscopic magnetic structures are manufactured with nanoscale resolution, based on control of deposition processes via electrodeposition with nanoscale resolution, and wherein a surface area created by surfaces of the deposited solid materials is high, as compared to magnetic structures that are constructed as thin films.

12 . A method for producing magnetic structures comprising:
generating patterns in an editable structure via an editing tool, filling hollow portions in at least one of the patterns with solid materials, wherein the filling is accomplished at least in part by electrodeposition from one or more conductive fluids, gases, or plasmas using an electrode structure in close proximity to the editable structure as an electrode, and subsequently depositing magnetic materials on the solid materials to produce structures containing magnetic materials.

13 . The method of claim 12 , wherein the editing tool, editable structure, and electrode structure are in a single container, and wherein the solid material and magnetic material fillings constitute the produced structures containing magnetic materials.

14 . The method of claim 12 , wherein the magnetic structures are removable from the electrode structure.

15 . The method of claim 12 , wherein the produced structures are composed at least in part of one or more of the following: metals, polymers, magnetizable materials, ferroelectric materials, paramagnetic materials, antiferromagnetic materials, magnetoferroic materials, or semiconductors.

16 . The method of claim 12 , wherein a depth profile of the editing tool results in produced structures with widths narrower than a width of the editing tool.

17 . The method of claim 12 , wherein the editing tool is a laser.

18 . The method of claim 12 , wherein the editing tool is a discharge-forming electrode.

19 . The method of claim 12 , further comprising applying annealing or curing, while the produced structures are in a container with the editing tool, editable structure, and electrode structure.

20 . The method of claim 12 , wherein the editable structure is deposited onto the electrode structure in a reel to reel process.

21 . The method of claim 12 , wherein magnetic or electrical fields are applied during the production method to magnetize or polarize one or more of the deposited materials.

22 . The method of claim 12 , wherein macroscopic magnetic structures are manufactured with nanoscale resolution, based on control of deposition processes via electrodeposition with nanoscale resolution, and wherein a surface area created by surfaces of the deposited solid materials is high, as compared to magnetic structures that are constructed as thin films.

Assignees

• Weinberg Medical Physics Inc

Inventors

• Weinberg Irving N
• Jafari Chamkavi Sahar
• Mair Lamar Odell
• Udalov Oleg

Classifications

• C25D7/0607

  Wires · CPC title

• C25D5/10

  Electroplating with more than one layer of the same or of different metals (for bearings C25D7/10) · CPC title

• C25D1/003

  3D structures, e.g. superposed patterned layers · CPC title

• H01F41/26 Primary

  using electric currents {, e.g. electroplating} · CPC title