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:
Dec. 23, 1997
Filed:
Feb. 20, 1996
Joseph F Vollaro, Pleasantville, NY (US);
IPEC Precision, Inc., Bethel, CT (US);
Abstract
An apparatus (40) for providing consistent, non-jamming registration of a notched semiconductor wafer (46) undergoing multiple sequential process work includes a plate (41) upon which the wafer (46) is laid flat. The notch (45) of the notched semiconductor wafer (46) is registered against a first roller (42) that is fixedly mounted to the plate (41). A second roller (43), also fixedly mounted to the plate (41), registers a first point (47) along the circumference of the wafer (46). A third roller (48) is fixedly mounted to a bracket (50) that is movable approximately along the radius of the wafer (46). A force (52) is applied to this bracket (50) resulting in the third roller (48) applying a force against the wafer (46). This resultant force, coupled with the rotating capability of the rollers (42,43,48), allows the wafer (46) to rotate into a proper registration position.