Abstract: A screen printing apparatus for and method of printing deposits of material onto a workpiece, the apparatus comprising: an inspection station for determining a positional relationship of features on upper and lower surfaces of the workpiece, the inspection station comprising: an imaging system for determining a positional relationship of features on upper and lower surfaces of the workpiece, the imaging system comprising at least two spaced imaging units for imaging features on an upper surface of the workpiece, at least two spaced imaging units for imaging features on a lower surface of the workpiece, and a processing unit for determining a positional relationship of the imaged features on the upper and lower surfaces of the workpiece; and a printing station for printing deposits of material onto the workpiece, the printing station comprising: a workpiece support assembly comprising a workpiece support member for supporting the workpiece at a printing zone; a printing screen disposed above the workpiece supp

Abstract: A screen printing apparatus and method for printing deposits of material onto a workpiece, the apparatus comprising an inspection station for determining a positional relationship of features on upper and lower surfaces of the workpiece. The inspection station comprises an imaging system for determining a positional relationship of features on upper and lower surfaces of the workpiece. The imaging system comprises at least two spaced imaging units for imaging features on an upper surface of the workpiece and at least two spaced imaging units for imaging features on a lower surface of the workpiece. A processing unit determines a positional relationship of the imaged features on the upper and lower surfaces of the workpiece. A printing station prints deposits of material onto the workpiece. Also described are a transport mechanism and an alignment system.

Abstract: A screen printing apparatus for printing a predeterminable pattern of deposits of printing material onto a workpiece, the screen printing apparatus comprising: at least one print module comprising, as a unitary assembly, a printing screen, a print head movably disposed above the printing screen and a drive mechanism for moving the print head with respect to the printing screen; and a positioning unit for positioning the print module with respect to the workpiece.