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, 2026
Filed:
Jul. 24, 2023
Ibiden Co., Ltd., Ogaki, JP;
Toshiki Furutani, Ibi-gun, JP;
Masashi Kuwabara, Ibi-gun, JP;
IBIDEN CO., LTD., Ogaki, JP;
Abstract
A wiring substrate includes a first build-up part includes first insulating layers, first conductor layers and first via conductors, and a second build-up part laminated to the first build-up part and including second insulating layers, second conductor layers and second via conductors. The first conductor layers in the first build-up part and the second conductor layers in the second build-up part include wirings such that a wiring width and an inter-wiring distance of the wirings in the first conductor layers are smaller than a wiring width and an inter-wiring distance of the wirings in the second conductor layers, an aspect ratio of the wirings in the first conductor layers is in the range of 2.0 to 4.0, the wiring width of the wirings in the first conductor layers is 3 μm or less, and the inter-wiring distance of the wirings in the first conductor layers is 3 μm or less.