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:
Jun. 02, 1998
Filed:
Jun. 06, 1995
Lawrence R Cutting, Owego, NY (US);
Michael A Gaynes, Vestal, NY (US);
Eric A Johnson, Greene, NY (US);
Cynthia S Milkovich, Vestal, NY (US);
Jeffrey S Perkins, Endwell, NY (US);
Mark V Pierson, Binghamton, NY (US);
Steven E Poetzinger, Apex, NC (US);
Jerzy Zalesinski, Essex Junction, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A screen printing machine comprising a backing plate with holes conforming to components attached to the surface of a flexible circuit board. The machine includes a screen which patterns solder paste on the surface of the circuit board while the circuit board is on the backing plate. Also included is a spring loaded element disposed adjacent to the backing plate which applies a predetermined continuous force to the four corners of the circuit board. This force is applied in a diagonal direction to the corners to stretch the circuit board so that the circuit board is parallel to the backing plate during screening.