Patent ID: 8857044

Claim:
A system for manufacturing a field emission structure, comprising: a magnet supplying device; and a magnet placement device, said magnet placement device placing each one of a plurality of magnets at a corresponding location of a plurality locations of said field emission structure, said corresponding location and a corresponding polarity orientation of each of said plurality of magnets relative to each other being defined in accordance with a code that specifies at least one magnet of said plurality of magnets having a first polarity orientation and at least one other magnet of said plurality of magnets having a second polarity orientation, said second polarity orientation being opposite said first polarity orientation, wherein first two magnets of said plurality of magnets that have been placed at two adjacent locations of said plurality of locations of said field emission structure have said first polarity orientation and second two magnets of said plurality of magnets that have been placed at two adjacent locations of said plurality of locations of said field emission structure include a first magnet of the second two magnets having said first polarity orientation and a second magnet of the second two magnets having said second polarity orientation.