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. 10, 2018
Filed:
Dec. 12, 2014
Nec Corporation, Tokyo, JP;
Morio Takahashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
It is difficult to actualize a semiconductor optical waveguide having desired properties that reflect design even when process technology for a semiconductor electronic circuit is applied as is to the production of a semiconductor optical waveguide. The present invention includes: a substrate; a semiconductor optical waveguide structure arranged on the substrate; a planar region formed around the semiconductor optical waveguide structure on the substrate; and a semiconductor dummy structure that is arranged around the planar region on the substrate and is formed of a plurality of dummy patterns, wherein the semiconductor optical waveguide structure includes a line-symmetric pattern on a plane that is parallel to the substrate; and the plurality of dummy patterns are arranged symmetrically with respect to the symmetry axis of the line-symmetric pattern.