The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2000
Filed:
Dec. 10, 1998
Allen D Hertz, Boca Raton, FL (US);
Eric L Hertz, Boca Raton, FL (US);
Dennis D Epp, Irvine, CA (US);
Other;
Abstract
Solder Paste, adhesives and other materials are screen printed onto Printed Circuit Boards (PCB's) during the assembly process for electronic circuit assemblies. Pressure forces may be applied to the material to aid in separating the material from the apertures within the stencil. The pressure forces are created from sound pressure waves generated from a vibrational energy source located some distance from the stencil. Examples of non-contacting vibrational energy sources include Ultrasonic transducers, horns, speakers, and tuning forks. Additional assistance to separate the material from the apertures may be applied by a vibrational source by contacting to the stencil. Examples of the contacting vibrational energy sources may be off-balanced motors, piezo-electric transducers, and mass-resonant vibrators.