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:
May. 12, 2009
Filed:
Dec. 01, 2004
Gerrit Schubert, Kelkheim, DE;
Joerg Rieke-zapp, Frankfurt, DE;
Johannes Keil, Frankfurt, DE;
Heinz-werner Kleemann, Bischofsheim, DE;
Reda Hanna, Allentown, PA (US);
Bao-guo Huang, Bridgewater, NJ (US);
Xiao-dong Wu, Bridgewater, NJ (US);
Yves Gouraud, Montfermeil, FR;
Gerrit Schubert, Kelkheim, DE;
Joerg Rieke-Zapp, Frankfurt, DE;
Johannes Keil, Frankfurt, DE;
Heinz-Werner Kleemann, Bischofsheim, DE;
Reda Hanna, Allentown, PA (US);
Bao-Guo Huang, Bridgewater, NJ (US);
Xiao-Dong Wu, Bridgewater, NJ (US);
Yves Gouraud, Montfermeil, FR;
sanofi-aventis Deutschland GmbH, Frankfurt am Main, DE;
Abstract
A method and apparatus for preventing board warpage during the application and curing or drying of liquid epoxies, or the like, on printed circuit boards using a clamping fixture assembly, which includes at least one clamping fixture support and at least one clamping fixture overlay. If desired, a plurality of printed circuit boards may be processed using an appropriate clamping fixture assembly. Furthermore, the clamping fixture may be constructed so a slight bow or curvature thereof can counter either a convex or concave bow or curvature of the printed circuit board. In the method, at least one printed circuit board is mounted to a clamping fixture support whereby a clamping fixture overlay is placed on top of the first printed circuit board.