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:
Jul. 05, 1977
Filed:
Sep. 23, 1974
Joseph J Bakewell, Boxford, MA (US);
Dynamics Research Corporation, Wilmington, MA (US);
Abstract
A bi-metal screen for the fabrication of precisely di-mentioned thick film elements and a method of screen fabrication. The bi-metal screen comprises a first metal screen which provides a web or mesh with accurately placed openings for holding a spacer sheet which contains the desired thick film pattern. The mesh is electroformed onto the spacer sheet, and a cavity with accurate cross section control corresponding to the dimensions of the desired thick film element is produced in the spacer sheet from the opposite side of the mesh. The spacer is also etched through the openings in the support mesh to permit inking of the thick film cavity from the mesh screen side. Accurate alignment is maintained between the opening of the support mesh and the pattern of the desired thick film elements during fabrication.