Patent ID: 11881376
Assignee: ENTEGRIS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC H

Claim 0:
1. A method of generating aluminum ion in an ion source having an ion source chamber, the method comprising:
in an ion source chamber that contains aluminum dopant source, flowing into the ion source chamber:
fluorine-containing gas selected from BF3, PF3, PF5, GeF4, XeF2, CF4B2F4, SiF4, Si2F6, AsF3, AsF5, XeF4, XeF6, WF6, MoF6, CnF2n+2, CnF2n, CnF2n−2, CnHxF2n+2−x, CnHxF2n−x, CnHxF2n−2−x (n=1, 2, 3 . . . , -x=0, 1, 2 . . . ), COF2, SF6, SF4, SeF6, NF3, N2F4, HF, F2, or a combination thereof, and
hydrogen-containing gas, wherein flowing the hydrogen containing gas to the ion source in an amount that is 10 to 30 percent to a maximum beam current, and

generating aluminum ions within the ion source chamber;, wherein the aluminum dopant source comprises solid aluminum target selected from: aluminum oxide, aluminum carbide, aluminum boride, and a combination of these.