Circuit board and its manufacturing method

Optical waveguides – Planar optical waveguide

Reexamination Certificate

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C385S130000, C385S131000

Reexamination Certificate

active

11653891

ABSTRACT:
A circuit board comprises a base film that is a base layer, a first conductive circuit manufactured by hardening conductive paste material formed in a predetermined shape on the base film, a first insulating layer manufactured by hardening insulating paste material formed on the base film and the first conductive circuit, and a second conductive circuit manufactured by hardening conductive paste material in a predetermined shape on the first insulating layer, wherein an electronic part built-in by the first insulating layer and second insulating layer is connected to the second conductive circuit, and the first conductive circuit is connected to the second conductive circuit through a via hole.

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patent: 2001-93934 (2001-04-01), None
patent: 2002-164392 (2002-06-01), None
patent: 2002-261421 (2002-09-01), None
patent: 2002-344137 (2002-11-01), None

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