The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2003
Filed:
Jun. 15, 2001
Other;
Abstract
The surface cleaning of various components of high-tech devices, including computers and/or semiconductors, is performed during manufacturing. This surface cleaning is performed within a reduced pressure chamber by making use of perifluorocompound industrial gases, which eventually contaminate the atmosphere. These contaminant gases are emitted with nitrogen gas, which is used in operation of a dry pump. Under certain conditions, microwave radiation generates an atmospheric plasma torch. This plasma-torch device is attached to the vacuum pump, which emits the nitrogen gas with contaminants. The oxidation mechanism in the torch flames eliminates these contaminants. Additional reaction gases are mixed with the waste gas to improve efficiency of the contaminant elimination.