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:
Apr. 14, 2009
Filed:
Dec. 22, 2004
Koji Terada, Kawasaki, JP;
Jun Matsui, Kawasaki, JP;
Hiroyuki Nobuhara, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention provides substrate 10, capable of transmitting lights in thickness direction for enhancing usefulness of the substrate. Its object is to provide a substrate adapted for interconnecting optical elements, allowing reduction of number of components leading to miniaturization and low cost, and high-efficient and stable optical coupling leading to low electric power dissipation. To accomplish the object the substrate comprises substrate body, wherein it is comprised of electric wiring layer disposed on first substrate body surface in such a manner as to be capable of electrically connecting first optical element mounted on the side of first substrate body surface; and optical transmission path, propagating lights being transmitted and received between first optical element electrically connected at electric wiring layer and second optical element disposed on the side of second substrate body surface different from first substrate body surface in substrate body.