Method and system for single ion implantation

Radiant energy – Irradiation of objects or material – Irradiation of semiconductor devices

Reexamination Certificate

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C250S397000

Reexamination Certificate

active

07002166

ABSTRACT:
This invention concerns a method and system for single ion doping and machining by detecting the impact, penetration and stopping of single ions in a substrate. Such detection is essential for the successful implantation of a counted number of31P ions into a semi-conductor substrate for construction of a Kane quantum computer. The invention particularly concerns the application of a potential across two electrodes on the surface of the substrate to create a field to separate and sweep out electron-hole pairs formed within the substrate. A detector is then used to detecting transient current in the electrodes, and so determine the arrival of a single ion in the substrate.

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