METHOD AND APPARATUS FOR PRINTING ON A SUBSTRATE
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United States of America Patent
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Issued Date -
Feb 23, 2012
app pub date -
Aug 21, 2011
filing date -
Aug 23, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A screen printing apparatus and method for applying paste to a substrate while agitating the paste through vibration or pulsating of one or more pulse sources. The screen printing apparatus may comprise a support structure including a frame, a stencil supported by the frame, a squeegee configured to contact the stencil and transfer the paste through apertures of the stencil, and at least one pulse source attached to the support structure and configured to agitate the paste on the stencil. The pulse sources may be configured to attach to and vibrate the frame, squeegee, or other components contacting the paste. Some of the pulse sources may vibrate in different directions relative to each other. In some embodiments of the invention, the pulse source may be configured to be directly inserted or immersed in the paste resting on the stencil during various steps of the printing method.
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