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:
Sep. 19, 2000
Filed:
Nov. 28, 1997
Yoshinori Kamikawa, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
Connecting pads in pad rows in a signal layer are connected to another signal layer through a plurality of through hole rows each including a plurality of plated through holes that extend through a power source layer. Each of the through hole rows includes a plurality of through holes arranged side by side between each two adjacent pad rows corresponding thereto. These plated through holes each face the space between each two adjacent connecting pads in each corresponding pad row, and are arranged at intervals about twice as long as the intervals between the connecting pads. Each two adjacent through hole rows are located with an offset not smaller than the diameter of each pad in the longitudinal direction of the rows, and the power source layer includes a plurality of clear regions that are cleared of a conductor and penetrated individually by the through holes.