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:
Nov. 14, 2017
Filed:
Feb. 04, 2015
Shinko Electric Industries Co., Ltd., Nagano, JP;
Noriyoshi Shimizu, Nagano, JP;
Shoji Watanabe, Nagano, JP;
Toshinori Koyama, Nagano, JP;
Akio Rokugawa, Nagano, JP;
SHINKO ELECTRIC INDUSTRIES CO., LTD., Nagano, JP;
Abstract
A wiring board includes first insulating layers; first wiring layers; first via wirings; second insulating layers; second wiring layers; second via wirings; and a solder resist layer, wherein the first insulating layers are composed of non-photosensitive resin, wherein the second insulating layers, and the solder resist layer are composed of photosensitive resin, respectively, wherein the first surface of the uppermost first insulating layer and the first end surface of the first via wiring embedded in the uppermost first insulating layer are polished surfaces, wherein the first end surface of the first via wiring embedded in the uppermost first insulating layer is flush with the first surface of the uppermost first insulating layer, and wherein the wiring density of the second wiring layers is higher than the wiring density of the first wiring layers.