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:
Aug. 04, 2020
Filed:
Nov. 22, 2018
Nippon Mektron, Ltd., Tokyo, JP;
NIPPON MEKTRON, LTD., Tokyo, JP;
Abstract
A printed wiring boardfor high frequency transmission according to an embodiment of the present invention includes: an insulating base material; a signal lineextending in a longitudinal direction of the insulating base material; ground wiringsextending in the longitudinal direction while being spaced apart from the signal lineby a predetermined distance; a ground layerformed on a major surface; a plurality of ground connection viaselectrically connecting the ground wiringand the ground layer; and a plurality of ground connection viaselectrically connecting the ground wiringand the ground layer. A width of the ground wiringsis smaller than a land diameter of the ground connection vias. Then, the ground connection viasand the ground connection viasare arranged not to overlap each other in a width direction perpendicular to the longitudinal direction throughout a cable portion