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. 23, 1995
Filed:
Sep. 20, 1994
Robert B Conn, Johnson City, NY (US);
Darleen Mayo, Endwell, NY (US);
Thurston B Youngs, Jr, Vestal, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Multiple circuit functions embodied in electrical circuit lines and areas are supported by a multilayered printed circuit board of various lengths and widths (defining 'x' and 'y' directions) and of various thicknesses (defining a 'z' direction) all on a single board. Several ways of achieving such variations in thickness include providing two layer subassemblies arranged in an alternate and intermediate manner, one subassembly being adapted to support electrical circuit lines and areas, and the other subassembly being formed of thin film dielectric material of various precalculated thicknesses. Another way of achieving a variation in thickness is to limit the surface covered by circuit lines with a pre-calculated core thickness.