| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of an optical transmitter and receiver with high reliability which can suppress optical axis deviation, destruction of an element and the like due to temperature change of resin for fixing. <P>SOLUTION: The manufacturing method of the optical transmitter and receiver of the present invention comprises: a step A of mounting a light emitting/receiving element on an upper surface of a flat printed board; a step B of arranging an optical waveguide so that the optical waveguide can be optically coupled with the light emitting/receiving element, and providing an inside resin layer on the upper surface of the printed board so as to cover the whole of the light emitting/receiving element and an end part of the optical waveguide; a step C of providing an intermediate resin layer having a refractive index lower than that of the inside resin layer so as to cover the inside resin layer; and a step D of providing an outside resin layer including heat-conductive filler so as to cover the intermediate resin layer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
