Discrete magnets in dielectric forming metal/ceramic laminate and process thereof
AssigneeInternational Business Machines Corporation
InventorsGovindarajan Natarajan, John U. Knickerbocker, Srinivasa S. N. Reddy, Rao V. Vallabhaneni
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Abstract
The present invention relates generally to a new dielectric forming metal/ceramic laminate magnet and process thereof. More particularly, the invention encompasses a new process for fabrication of a large area laminate magnet with a significant number of holes, integrated dielectric forming metal plate(s) and electrodes for electron and electron beam control. The present invention also relates to a magnetic matrix display and electron beam source and methods of manufacture thereof.
Claims33
A process of making unsintered laminate magnet, comprising the steps of:
- (a) forming at least one opening in a metal sheet having a first surface and a second surface,
- (b) securing at least one dielectric layer to said first surface of said metal sheet,
- (c) filling said at least one opening in said metal sheet with at least one composite magnetic material, and
- (d) forming at least one second opening through said composite magnetic material and said dielectric layer, such that at least a portion of said second opening overlaps at least a portion of said first opening in said metal sheet, and said second opening is smaller than said first opening, thereby making said unsintered laminate magnet.
A process of making unsintered laminate magnet, comprising the steps of:
- (a) forming at least one first opening in a metal sheet having a first surface and a second surface,
- (b) securing at least one dielectric layer to said first surface of said sheet,
- (c) forming at least one second opening in said dielectric layer using said first opening as a guide,
- (d) filling said at least one first and second openings in said metal sheet and said dielectric layer with at least one composite magnetic material,
- (e) forming at least one third opening through said composite magnetic material, such that at least a portion of said third opening overlaps at least a portion of said first opening in said metal sheet, and thereby making said unsintered laminate magnet.
A process of making laminate magnet, comprising the steps of:
- (a) forming at least one first opening in a metal sheet having a first surface and a second surface,
- (b) securing at least one dielectric layer to said first surface of said metal sheet,
- (c) filling said at least one first opening in said metal sheet with at least one composite magnetic material,
- (d) forming at least one second opening through said composite magnetic material and said dielectric layer, such that at least a portion of said second opening overlaps at least a portion of said first opening in said metal sheet, and thereby forming an unsintered laminate magnet, and
- (e) sintering said unsintered laminate magnet to form said laminate magnet.
A process of making sintered laminate magnet, comprising the steps of:
- (a) forming at least one first opening in a metal sheet having a first surface and a second surface,
- (b) securing at least one dielectric layer to said first surface of said dielectric forming metal sheet,
- (c) filling said at least one first opening in said metal sheet with at least one composite magnetic material,
- (d) forming at least one second opening through said composite magnetic material and said dielectric layer, such that at least a portion of said second opening overlaps at least a portion of said first opening in said metal sheet, and
- (e) sintering said metal sheet and said composite magnetic material, thereby making said sintered laminate magnet.
Dependencies are inferred from the claim text.