OPTICAL DEVICE AND METHOD OF MANUFACTURING THE SAME

1 . An optical device comprising:

a substrate having a resin base provided with an opening, a plurality of conductors embedded in the resin base such that at least parts of the plurality of conductors are exposed on a lower face of the resin base as electrode terminals, and a transparent member fitted into the opening of the resin base; and

an optical element having an optical region on an upper face thereof and which is mounted to a lower face of the substrate so that the optical region opposes the opening of the resin base,

wherein the substrate has a rectangular tabular shape whose thickness is substantially even.

2 . The optical device according to claim 1 , wherein thicknesses of the resin base and the transparent member are substantially equal.

3 . The optical device according to claim 1 , wherein both upper and lower faces of the transparent member are substantially flat.

4 . The optical device according to claim 1 , wherein a thickness of the substrate is around 300 μm to 500 μm.

5 . The optical device according to claim 1 , wherein the optical element is connected to the electrode terminals of the conductors via bumps.

6 . The optical device according to claim 1 , wherein the transparent member and the resin base are integrally resin-molded.

7 . The optical device according to claim 1 , wherein the transparent member is made of any one material among optical glass, quartz, crystal and optical resin.

8 . The optical device according to claim 1 , wherein the transparent member is constituted by combining a plurality of structures composed of any one material among optical glass, quartz, crystal and optical resin.

9 . The optical device according to claim 1 , wherein the optical element has either one of or both a light receiving element portion and a light emitting element portion.

10 . The optical device according to claim 1 , further comprising a transparent adhesive between the optical region of the optical element and the transparent member of the substrate.

11 . The optical device according to claim 1 , wherein the transparent member is provided with antireflective coating on a surface thereof.

12 . A method of manufacturing an optical device comprising the steps of:

mounting a transparent member on a supporting member;

mounting a conductor on the supporting member;

holding a lower face of the supporting member and an upper face of the transparent member with a metal mold and performing resin molding on the transparent member and the conductors; and

connecting an optical element having an optical region on an upper face thereof to a lower face of the conductors so that the transparent member and the optical region oppose each other.

13 . A method of manufacturing an optical device comprising the steps of:

mounting a plurality of transparent members on a supporting member;

mounting a conductor extending from a vicinity of respective outer peripheries of the plurality of transparent members to an outer side on the supporting member on the respective outer peripheries of the plurality of transparent members;

holding a lower face of the supporting member and upper faces of the plurality of transparent members with a metal mold and performing resin molding on the plurality of transparent members and the conductors; and

connecting a plurality of optical elements having an optical region on an upper face thereof to a lower face of the conductors so that the respective optical regions and the transparent members oppose each other.