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:
May. 24, 2016
Filed:
Jun. 27, 2013
Seiko Epson Corporation, Tokyo, JP;
Tsuyoshi Yoda, Matsumoto, JP;
Seiko Epson Corporation, , JP;
Abstract
A substrate includes a first insulating layer provided on a base board, a second insulating layer provided on the first insulating layer, a third insulating layer provided on the second insulating layer, a pad electrode provided on the third insulating layer, and a hole formed to penetrate the substrate and reaching the pad electrode. A diameter of the hole in the first insulating layer is larger than a diameter of the hole in the second insulating layer, and the first insulating layer and the second insulating layer are formed using different materials from each other and the second insulating layer and the third insulating layer are formed using different materials from each other.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile