Printed circuit board

Details Printed circuit board Printed circuit board

2011-08-02

2011-08-02

Pak, Sung H (Department: 2874)

Optical waveguides

Integrated optical circuit

Reexamination Certificate

active

07991250

ABSTRACT:
A printed circuit board including a first optical waveguide having a circuit pattern and a pad buried in one side thereof, a first insulation layer stacked over one side of the first optical waveguide, a first insulating material stacked over the first insulation layer, a first electrical wiring layer stacked over the first insulating material, a second optical waveguide having a circuit pattern and a pad buried in one side thereof, a second insulation layer stacked over one side of the second optical waveguide, a second insulating material stacked over the second insulation layer, a second electrical wiring layer stacked over the second insulating material, an intermediate layer interposed between the other side of the first optical waveguide and the other side of the second optical waveguide such that the first optical waveguide and the second optical waveguide are attached, and a via penetrating the first optical waveguide and the second optical waveguide.

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patent: 10-0796982 (2009-10-01), None
U.S. Appl. No. 12/219,135, filed Dec. 11, 2009, Sang-Hoom Kim et al.
Korean Office Action dated Oct. 21, 2009, issued in corresponding Korean Patent Application No. 10-2008-0014961.
U.S. Office Action dated Dec. 11, 2009, issued in the file history of U.S. Appl. No. 12/219,135.
Notice of Allowance dated Sep. 7, 2010, issued in the file history of U.S. Appl. No. 12/219,135.

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