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:
Jan. 20, 1998
Filed:
Jan. 28, 1997
Michael F Shaw, Sunrise, FL (US);
Anthony J Suppelsa, Coral Springs, FL (US);
Dale R Adams, Margate, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A stencil printing apparatus (100) is provided for printing a solder paste (108), through apertures (104) in a stencil (102), onto metallized portions of a printed circuit substrate (106). The printing apparatus contains a laser surface profiling device (114) which is used to produce 2- and 3-dimensional profiles of a portion of the surface of solder paste adjacent to a squeegee (110). Data is processed and sent to a controller (118) which is coupled to a solder paste dispenser (112). The controller automatically signals the dispenser (112) to dispense additional solder paste at deficient locations as needed.