Optical transmission module

Patent metadata

Field	Value
Publication number	US-9470578-B2
Application number	US-201514690787-A
Country	US
Kind code	B2
Filing date	Apr 20, 2015
Priority date	May 23, 2014
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

Abstract

An optical transmission module includes a first member having a bottom portion, sidewalls and an opening, a second member joined to a sidewall end surface of the first member and sealing the opening, a light-emitting element mounted on an inner surface of the second member, an interconnection formed on the inner surface of the second member and extending inside and outside the first member across the sidewalls of the first member, and electrodes formed on outer surfaces of the sidewalls of the first member. The second member transmits therethrough light outputted from the light-emitting element. One end portion of the electrode is electrically connected to one end portion of the interconnection extending outside the first member. The other end of the electrode is soldered to an interconnection formed on a substrate surface on which the optical transmission module is mounted.

First claim

What is claimed is:

1. An optical transmission module including an optical element with a photoelectric conversion function, comprising:
a first member having a bottom portion and sidewalls, and one surface with an opening;
a second member joined to an end surface of the sidewall of the first member and sealing the opening of the first member;
the optical element mounted on an inner surface of the second member that faces an inner surface of the bottom portion of the first member;
an interconnection formed on the inner surface of the second member and extending inside and outside the first member across the sidewalls of the first member; and
electrodes formed on outer surfaces of the sidewalls of the first member;
wherein the second member transmits therethrough at least one of light outputted from the optical element and light incident on the optical element,
one end portion of the electrode is electrically connected to one end portion of the interconnection extending outside the first member, and
the other end portion of the electrode is soldered to an interconnection or an electrode formed on a mounting surface on which the optical transmission module is mounted.

2. The optical transmission module according to claim 1 , comprising:
a connector member, which is provided on an outer surface of the second member, having an optical interconnection connected thereto;
wherein the connector member converts a traveling direction of light transmitted through the second member to make the light incident on the connected optical interconnection, or converts a traveling direction of light outputted from the connected optical interconnection to make the light incident on the second member.

3. The optical transmission module according to claim 1 ,
wherein the first member and the second member are formed of only an inorganic material.

4. The optical transmission module according to claim 1 ,
wherein the opening of the first member is air-tightly sealed by the second member.

5. The optical transmission module according to claim 1 ,
wherein a light-emitting element as the optical element and a driver element for driving the light-emitting element are flip-chip mounted, and/or a light-receiving element as the optical element and an amplifier element for amplifying an output of the light-receiving element are flip-chip mounted.

Assignees

• Hitachi Metals Ltd

Inventors

• Sunaga Yoshinori
• Yamazaki Kinya
• Hirano Koki
• Yasuda Hiroki

Classifications

• G02B6/4251

  Sealed packages (G02B6/4248 takes precedence) · CPC title

• G02B6/4214 Primary

  the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device (G02B6/4246 takes precedence) · CPC title

• G02B6/4259

  of the transparent type · CPC title

• G02B6/4274

  Electrical aspects (G02B6/4263 and G02B6/4265 take precedence) · CPC title

• H01S5/0224

  Electricity · mapped topic