Patent ID: 6495199
Filing Date: 2002-12-17
Classification: B05D,B41M,B41P,H05K

Abstract:
A method for depositing a viscous material onto a substrate through openings formed in a stencil positioned over the substrate, said method comprising the steps of:providing a receptacle having a top and a bottom and at least one longitudinal side, said bottom having an aperture; providing a wiper attached to said bottom of said receptacle along said longitudinal side, wherein said wiper is inclined at an angle with respect to a plane that is parallel to said bottom of said receptacle; placing the viscous material into an intermediate receptacle having at least one aperture formed in a bottom side thereof; inserting said intermediate receptacle into said receptacle; applying a pressure and moving the viscous material toward said at least one aperture formed in said bottom side of said intermediate receptacle, and toward said aperture in said bottom of said receptacle, wherein the viscous material is pushed against said wiper such that said wiper is pushed against the stencil; and displacing said receptacle, said intermediate receptacle, and said wiper along the stencil in a direction substantially perpendicular to said longitudinal side of said receptacle; wherein an excess amount of viscous material left on the stencil is detached and lifted by said wiper and mixed with the viscous material being moved toward said aperture.