Extraction electrode manipulator
View Patent ↗An extraction electrode manipulator system, comprising an ion source, a suppression electrode and a ground electrode, wherein the two electrode are supported by coaxially arranged two water cooled support tubes. A high voltage insulator ring is located on the other end of the coaxial support tube system to act as a mechanical support of the inner tube and also as a high voltage vacuum feedthrough to prevent sputtering and coating of the insulating surface.
1. An extraction electrode manipulator system, comprising:
a suppression electrode;
wherein the suppression electrode is supported by an inner support tube of a coaxially arranged support tube system;
a ground electrode;
wherein the ground electrode is supported by an outer support tube of the coaxially arranged support tube system; and
a high voltage insulator ring;
wherein the high voltage insulating ring is located on the far end of the coaxially arranged support tube system and acts as mechanical support of the coaxial support system and also as a high voltage vacuum feedthrough.
2. The system of claim 1 , wherein both the support tubes in the coaxially arranged support system are water cooled to minimize thermal expansion.
3. The system of claim 1 , wherein one high voltage insulator acts
as a mechanical support of an electrode and also as a high voltage vacuum feedthrough.
4. The system of claim 1 , wherein the insulator ring is made of a material comprising ceramic and plastic.
5. The system of claim 1 , wherein the inner support tube is made of a material comprising stainless steel, aluminum, molybdenum and refractory metals.
6. The system of claim 1 , wherein the outer support tube is made of a material comprising stainless steel, aluminum, molybdenum and refractory metals.
7. The system of claim 1 , wherein both support tubes in the coaxially arranged support system are water cooled to minimize thermal expansion.
8. The system of claim 7 wherein one high voltage insulating standoff acts as a mechanical support of an electrode and also as a high voltage vacuum feedthrough.
9. The system of claim 1 , wherein the insulator ring is cylindrical with a center opening for the inner water cooled support tube to pass through the insulating standoff.
10. The system of claim 1 , wherein the insulator ring is made of a material comprising ceramic.
11. The system of claim 1 , wherein the inner support tube is made of a material comprising stainless steel, aluminum, molybdenum and refractory metals.
12. The system of claim 1 , wherein the outer support tube is made of a material comprising stainless steel, aluminum, molybdenum and refractory metals.
13. An ion implantation system, comprising:
an ion beam source comprising an extraction electrode manipulator system;
a suppression electrode;
wherein the suppression electrode is supported by an inner support tube of coaxially arranged support tube system;
a ground electrode;
wherein the ground electrode is supported by an outer support tube of coaxially arranged support tube system;
a high voltage insulator ring; and
wherein the high voltage insulator ring is located on the far end of coaxially arranged support tube system and acts as mechanical support of the coaxial support system and also as a high voltage vacuum feedthrough;
a beam line assembly receives an ion beam from the source comprising;
a mass analyzer that selectively passes selected ions; and
an end station that receives the ion beam from the beam line assembly.
14. An extraction electrode manipulator system, comprising:
a coaxially arranged support tube system comprising an inner tube and an outer tube, the support tube system comprising a first end and a second end;
a suppression electrode connected to the first end of one of the inner tube and the outer tube, and a ground electrode connected to the first end of the other of the inner tube and the outer tube; and
an insulator ring located at the second end of the support tube system, and configured to mechanically support the support tube system.
15. The system of claim 14 , further comprising a controller configured to independently control the inner and outer tubes of the coaxially arranged support tube system, thereby altering a vertical position of an aperture of either the suppression electrode or the ground electrode, or both, with respect to an ion beam.
16. The system of claim 15 , wherein the controller is further configured to control a lateral position of both the suppression electrode and the ground electrode with respect to an ion source, thereby altering a gap between the suppression electrode and the ground electrode arrangement and the ion source.
17. The system of claim 16 , wherein the controller is configured to control the lateral positioning of the suppression electrode and the ground electrode as a function of an ion beam energy.
18. The system of claim 16 , wherein the controller is configured to receive data reflecting an ion beam quality, and generate one or more control signals to alter the vertical position of either the suppression electrode or the ground electrode, or both, and/or the lateral positioning of the suppression electrode and the ground electrode in response thereto.
19. The system of claim 15 , wherein the controller is configured to receive data reflecting an ion beam quality, and generate one or more control signals to alter the vertical position of either the suppression electrode or the ground electrode, or both.
20. The system of claim 14 , wherein one or both of the inner tube and the outer tube comprise a water cooled support tube.