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. 24, 2025
Filed:
Feb. 17, 2022
International Business Machines Corporation, Armonk, NY (US);
Hiroyuki Mori, Yasu, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments of present invention provide a multilayer printed circuit board. The printed circuit board includes a first conducting layer (CL) having a first measurement mark area (MMA) and a second CL having a second MMA. A first polygonal measurement mark (MM) in the first MMA and a second and a third polygonal MM in the second MMA, wherein the second polygonal MM is positioned along an extended first angle bisector bisecting a first vertex of the first polygonal MM and a first vertex of the second polygonal MM is substantially aligned with the first vertex of the first polygonal MM, and wherein the third polygonal MM is positioned along an extended second angle bisector bisecting a second vertex of the first polygonal MM and a first vertex of the third polygonal MM is substantially aligned with the second vertex of the first polygonal MM.