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:
May. 10, 2016
Filed:
Aug. 29, 2013
Varian Semiconductor Equipment Associates, Inc., Gloucester, MA (US);
Steven C. Borichevsky, Ipswich, MA (US);
Varian Semiconductor Equipment Associates, Inc., Gloucester, MA (US);
Abstract
A semiconductor process pump configured to mitigate losses in pump speed during operation. The semiconductor process pump may include a housing having an inlet port for receiving gas molecules therethrough, wherein a forward-most terminus of the inlet port defines an inlet face, one or more working surfaces disposed within the housing, and a mounting flange disposed on an exterior of the housing for facilitating attachment of the pump to a gas enclosure, wherein a forward-most terminus of the mounting flange defines a flange face. The flange face may be offset from the inlet face rearwardly along the housing by a distance d. Thus, when the semiconductor process pump is mounted to a wall of a gas enclosure, the housing may extend into the wall and the inlet face may be disposed within or immediately adjacent the interior of the gas enclosure.