Method for extending equipment uptime in ion implantation
View Patent ↗The invention features in-situ cleaning process for an ion source and associated extraction electrodes and similar components of the ion-beam producing system, which chemically removes carbon deposits, increasing service lifetime and performance, without the need to disassemble the system. In particular, an aspect of the invention is directed to an activating, catalytic, or reaction promoting species added to the reactive species to effectively convert the non-volatile molecular residue into a volatile species which can be removed by conventional means.
1. A method of cleaning a semiconductor system of a residue material with a semiconductor cleaning system, the method comprising:
providing a reactive specie and boron triflouride gas as a catalytic specie to the semiconductor cleaning system to promote the conversion of the residue material to a gas removing said gas.
2. A method of cleaning a semiconductor system of a residue material with a semiconductor cleaning system, the method comprising;
providing a reactive specie to the semiconductor cleaning system; providing a catalytic specie to the semiconductor cleaning system, wherein the catalytic specie is boron trifluoride gas; mixing a catalytic specie with the reactive specie; providing the mixed specie to the semiconductor cleaning system to increase the rate of reaction with the residue material to form a removable material; and removing the removable material.
3. A method according to claim 1 , wherein the reactive specie is a halogen gas.
4. A method according to claim 1 , wherein the reactive specie is oxygen gas.
5. A method according to claim 1 , wherein the reactive specie is hydrogen gas.
6. A method according to claim 1 , wherein the reactive specie is hydrogen fluoride gas.