SQUEEGEE PRINTING ON DESCEDED SURFACES

摘要

A stencil for applying a viscous material to a substrate includes a substantially planar plate affixed to the substrate, the plate having at least one aperture of a first dimension and at least one relief hole of a second dimension, the at least one aperture configured to align with a printing surface of the substrate and the at least one relief hole configured to align with a feature having a height greater than the printing surface; and a mask attached to a top surface of the plate and positioned over the at least one relief hole to protect the feature having the height greater than the printing surface from

主权项

1. A stencil for applying a viscous material to a substrate, the stencil comprising:
a substantially planar plate affixed to the substrate, the substantially planar plate having at least one aperture of a first dimension and at least one relief hole of a second dimension, the at least one aperture configured to align with a printing surface of the substrate and the at least one relief hole positioned at a location of a feature having a height greater than the printing surface, a pitch of the relief hole matching a pitch of the at least one feature; and a mask attached to a top surface of the substantially planar plate, a pitch of the mask configured to match a pitch of the at least one feature, the mask positioned over a perimeter of the at least one relief hole to protect the feature having the height greater than the printing surface from a squeegee having a relief cut applying the viscous material over the substantially planar plate, the squeegee comprising an angled notched blade used to drive the viscous material across the top surface of the substantially planar plate at a controlled speed and force, the notch preventing blade contact with the mask.