Claims
- 1. A process for making a metal/ferrite laminate magnet comprising:(a) forming a plurality of apertures in a metal sheet, (b) securing a ferrite green sheet to a portion of said metal sheet, (c) forming a plurality of apertures in said ferrite green sheet such that at least a portion of said apertures in said ferrite green sheet are aligned with at least a portion of a corresponding aperture in said metal sheet, (d) sintering said metal sheet and said ferrite green sheet to form a metal/ferrite laminate, and (e) magnetizing said laminate to form said metal/ferrite laminate magnet.
- 2. The process according to claim 1, wherein said laminate magnet is magnetized in the direction of the apertures.
- 3. The process according to claim 1, wherein the plurality of apertures formed in said metal sheet and said ferrite green sheet are arranged as a regular array.
- 4. The process according to claim 3, wherein said regular array is selected from a group consisting of a square array or a rectangular array.
- 5. The process according to claim 1, wherein at least one aperture in said metal sheet is used as a guide to form at least one aperture in said ferrite green sheet.
- 6. The process according to claim 1, wherein the thermal expansion coefficient of said ferrite sheet is similar to that of said metal sheet.
- 7. The process according to claim 1, wherein material for said metal sheet is selected from a group consisting of soft iron or stainless steel.
- 8. The process according to claim 1, wherein the diameter for said aperture in said metal sheet is approximately 100 μm.
- 9. The process according to claim 1, wherein the thickness of said metal sheet is approximately 50 μm.
- 10. The process according to claim 1, wherein the diameter for said aperture in said ferrite green sheet is approximately 100 μm.
- 11. The process according to claim 1, wherein the thickness of said ferrite green sheet is approximately 200 μm.
- 12. The process according to claim 1, wherein said aperture diameter for said metal sheet and said ferrite green sheet is approximately 200 μm, said metal sheet is approximately 50 μm in thickness, and said ferrite green sheet is approximately 600 μm in thickness.
- 13. The process according to claim 1, wherein said ferrite sheet has a bulk electrical resistance of between 107 Ω/□ (ohms per square) and 109 Ω/□ (ohms per square).
- 14. The process according to claim 1, further comprising:securing an insulating layer to at least a portion of said metal sheet, securing a conductive layer that will form a deflection anode to at least a portion of said insulating layer, and forming a plurality of apertures in said conductive layer and said insulating layer, such that each of said aperture correspond to, and are aligned with, a corresponding aperture in said metal sheet.
- 15. The process of claim 1, wherein at least two metal/ferrite laminate are formed and secured to each other prior to said sintering and magnetizing.
- 16. The process of claim 15, wherein ferrite green sheet from two metal/ferrite laminate are secured to each other such that at least a portion of the apertures in said ferrite green sheet are aligned with at least a portion of said apertures in said metal sheets, and wherein said two metal/ferrite laminate are sintered and magnetized.
- 17. The process according to claim 16, wherein said metal/ferrite laminate is magnetized in the direction of the apertures.
- 18. The process according to claim 16, wherein the plurality of apertures formed in said metal sheet and said ferrite sheet are arranged as a regular array.
- 19. The process according to claim 18, wherein said regular array is selected from a group consisting of a square array or a rectangular array.
- 20. The process according to claim 16, wherein at least one aperture in said metal sheet is used as a guide to form at least one aperture in said ferrite green sheet.
- 21. The process according to claim 16, wherein the thermal expansion coefficient of said ferrite sheet similar to that of said metal sheet.
- 22. The process according to claim 16, wherein material for said metal sheet is selected from a group consisting of soft iron or stainless steel.
- 23. The process according to claim 16, wherein the diameter for said aperture for said metal sheet is approximately 100 μm.
- 24. The process according to claim 16, wherein the thickness of said metal sheet is approximately 50 μm.
- 25. The process according to claim 16, wherein the diameter for said aperture for said ferrite green sheet is approximately 100 μm.
- 26. The process according to claim 16, wherein the thickness of said ferrite green sheet is approximately 200 μm.
- 27. The process according to claim 16, wherein said aperture diameter for said metal sheet and said ferrite green sheet is approximately 200 μm, said metal sheet is approximately 50 μm in thickness, and said ferrite green sheet is approximately 600 μm in thickness.
- 28. The process according to claim 16, wherein said ferrite sheet has a bulk electrical resistance of between 107 Ω/□ (ohms per square) and 109 Ω/□ (ohms per square).
- 29. The process according to claim 16, further comprising:securing an insulating layer to at least a portion of said metal sheet, securing a conductive layer that will form a deflection anode to at least a portion of said insulating layer, and forming a plurality of apertures in said conductive layer and said insulating layer, such that each of said aperture correspond to, and are aligned with, a respective aperture in said metal sheet.
CROSS-REFERENCE TO RELATED PATENT APPLICATION
This Patent Application is a Divisional Patent Application of U.S. patent application Ser. No. 08/854,285, filed on May 9, 1997, which issued as U.S. Pat. No. 5,986,395, on Nov. 16, 1999.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2303981 |
Mar 1997 |
GB |
Non-Patent Literature Citations (1)
Entry |
Patent Abstracts of Japan, Publication No. JP60093742, vol.: 9, No.: 240, Patentee: Matsushita Denki Sangyo KK, entitled “Display Device”. |