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:
Jul. 31, 2007
Filed:
Jul. 15, 2004
William Russell Claiborne, Worcester, MA (US);
William Russell Claiborne, Worcester, MA (US);
Speedline Technologies, Inc., Franklin, MA (US);
Abstract
A stencil printer for printing solder paste onto a substrate includes a frame, a stencil, coupled to the frame, having apertures formed therein, a support assembly, coupled to the frame, to support the substrate in a printing position beneath the stencil, and a dispensing head coupled to the frame in such a manner that the dispensing head is configured to traverse the stencil during first and second print strokes. The dispensing head includes a frame assembly and a wiper blade assembly, coupled to the frame assembly, having first and second wiper blades that contact the stencil to print solder paste onto the stencil during a print stroke. The first and second wiper blades are constructed and arranged to force solder paste through the apertures of the stencil. The dispensing head further includes a dispensing unit, coupled to the frame assembly, having a chamber adapted to dispense solder paste, the dispensing unit being disposed between the first and second wiper blades to deposit solder paste therebetween. A method for printing solder paste on a substrate is further disclosed.