Technical Articles From Lu-Con Technologies

Profiled Squeegee Blade: Rewrites the Rules for Angle of Attack

Dec 24, 2014 | Ricky Bennett, Rich Lieske - Lu-Con Technologies, Corey Beech - RiverBend Electronics

For centuries, the squeegee blade has been used throughout many applications for depositing viscous materials through screens and stencils to transfer images on to substrates, from cloth material to electronic circuit boards. One area of blade printing mechanics that have been reviewed many times is the angle of attack of the blade. Typically it has been tested from 45 degrees to 60 degrees to optimize the printing quality and efficiency. However, this typically ends up as a compromise, from fill characteristics (45 degrees) to print definition (60 degrees). This paper will present the revolutionary performance of the profiled squeegee blade, which has recently been developed to create a virtual multi angle of attack for unsurpassed process control for all types of stencil printing processes....