System and method for manufacturing a field emission structure

• US 8,844,121 B2
• Filed: 11/19/2012
• Issued: 09/30/2014
• Est. Priority Date: 04/04/2008
• Status: Expired due to Fees

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Correlated Magnetics Research, LLC
• Inventors: Fullerton, Larry W., Roberts, Mark D.
• Primary Examiner(s): Kim, Paul D
• Application Number:
  US13/681,095
• Publication Number:
  US 20130305522A1
• Time in Patent Office: 680 Days
• Field of Search: 295/921, 296/00, 296/021, 296/06, 296/07, 297/27, 335/285, 335302-306
• US Class Current: 29/607
• CPC Class Codes: H01F 41/02 for manufacturing cores, coils, or magnets H01F41/14 takes precedence; for dynamo-electric machines H02K15/00
• CPC Class Codes: H01F 7/0278 for generating uniform fields, focusing, deflecting electrically charged particles for magnetic separation by Lorentz force B03C1/023; specially adapted for NMR applications G01R33/383
• CPC Class Codes: H01F 7/0284 using a trimmable or adjustable magnetic circuit, e.g. for a symmetric dipole or quadrupole magnetic field
• CPC Class Codes: H01L 27/0266 using field effect transistors as protective elements
• CPC Class Codes: H01P 11/00 Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
• CPC Class Codes: Y10T 24/32 having magnetic fastener
• CPC Class Codes: Y10T 29/49016 Antenna or wave energy "plumbing" making
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor
• CPC Class Codes: Y10T 29/49073 by assembling coil and core
• CPC Class Codes: Y10T 29/49075 including permanent magnet or core
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49904 Assembling a subassembly, then assembling with a second subassembly
• CPC Class Codes: Y10T 29/53091 for work-holder for assembly or disassembly
• CPC Class Codes: Y10T 29/5313 Means to assemble electrical device
• CPC Class Codes: Y10T 29/53265 with work-holder for assembly

Abstract

An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Claims

1. A system, comprising:

a first field emission structure, said first field emission structure having first field emission properties;

a heat source for heating said first field emission structure to at least a critical temperature at which said first field emission structure is susceptible to a change in said first field emission properties; and

a second field emission structure comprising a plurality of field emission sources having a polarity pattern, said polarity pattern including a first polarity and a second polarity opposite said first polarity, said second field emission structure having second field emission properties in accordance with said polarity pattern,

wherein said second field emission structure is brought into proximity with said first field emission structure while said first field emission structure has been heated to at least said critical temperature and causes said first field emission structure to have third field emission properties in accordance with said polarity pattern after said first field emission structure has cooled to a temperature below said critical temperature.

2. The system of claim 1, wherein said first field emission structure is a magnetic field emission structure.

3. The system of claim 1, wherein said first field emission structure comprises a ferromagnetic material and said critical temperature is called the Curie temperature.

4. The system of claim 1, wherein said first field emission structure comprises an anti-ferromagnetic material and said critical temperature is called the Né

el temperature.

5. A system, comprising:

a first field emission structure, said first field emission structure having first field emission properties;

a heat source for heating said first field emission structure to at least a critical temperature at which said first field emission structure is susceptible to a change in said first field emission properties; and

a second field emission structure comprising a plurality of field emission sources having a polarity pattern, said polarity pattern including a first polarity and a second polarity opposite said first polarity, wherein said second field emission structure is brought into proximity with said first field emission structure and causes said first field emission structure to have second field emission properties in accordance with said polarity pattern after said first field emission structure has cooled to a temperature below said critical temperature.

6. The system of claim 5, wherein said first field emission structure comprises a ferromagnetic material and said critical temperature is called the Curie temperature.

7. The system of claim 5, wherein said first field emission structure comprises an anti-ferromagnetic material and said critical temperature is called the Né

el temperature.

8. The system of claim 5, wherein heating said first field emission structure comprises heating at least one portion of said first field emission structure.

9. The system of claim 5, wherein said heat source comprises at least one laser.

10. A method, comprising:

heating a first field emission structure having first field emission properties to at least a critical temperature at which said first field emission structure is susceptible to a change in said first field emission properties;

bringing a second field emission structure into proximity with said first field emission structure, said second field emission structure comprising a plurality of field emission sources having a polarity pattern, said polarity pattern including a first polarity and a second polarity opposite said first polarity, and

allowing said first field emission structure to cool to a temperature below said critical temperature causing said first field emission structure to have second field emission properties in accordance with said polarity pattern.

11. The method of claim 10, wherein said first field emission structure comprises a ferromagnetic material and said critical temperature is called the Curie temperature.

12. The method of claim 10, wherein said first field emission structure comprises an anti-ferromagnetic material and said critical temperature is called the Né

el temperature.

13. The method of claim 10, wherein heating said first field emission structure comprises heating at least one portion of said first field emission structure.