IP Library Granted Patent US 9,449,956
Granted Patent B2
US 9,449,956 · App. 14/743,411 · Granted Sep 20, 2016

Optical apparatus

Inventors: Yuji Makimura (Kyoto, JP); Okimoto Kondo (Kyoto, JP)
Assignee: ROHM CO., LTD.
H01L25/167H01H57/00H01H59/0009H01L31/02005H01L31/02164H01L31/035272H01L31/16H01L31/173G01V8/10H01L2224/48227H01L2224/49171H01L2924/3025H01L2933/0091
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Quick Facts
Patent No.
US 9,449,956
App. No.
14/743,411
Granted
Sep 20, 2016
Kind
B2
Abstract

An optical apparatus includes a substrate 1 , a wiring pattern 8 formed on the substrate 1 , a light-receiving element 3 and a light-emitting element 2 provided on the substrate 1 and spaced apart from each other in a direction x, a light-transmitting resin 4 covering the light-receiving element 3 , a light-transmitting resin 5 covering the light-emitting element 2 , and a light-shielding resin 6 covering the light-transmitting resin 4 and the light-transmitting resin 5 . The wiring pattern 8 includes a first light-blocking portion 83 interposed between the light-shielding resin 6 and the substrate 1 and positioned between the light-receiving element 3 and the light-emitting element 2 as viewed in x-y plane. The first light-blocking portion 83 extends across the light-emitting element 2 as viewed in the direction x.

Claims (36)

1. An optical apparatus comprising:

a substrate;

a wiring pattern formed on the substrate;

a light-receiving element and a light-emitting element provided on the substrate and spaced apart from each other in a first direction perpendicular to a thickness direction of the substrate;

a first light-transmitting resin covering the light-receiving element;

a second light-transmitting resin covering the light-emitting element; and

a light-shielding resin covering the first light-transmitting resin and the second light-transmitting resin;

wherein the wiring pattern includes a first light-blocking portion interposed between the light-shielding resin and the substrate and positioned between the light-receiving element and the light-emitting element as viewed in the thickness direction,

the first light-blocking portion includes a first portion and a second portion spaced apart from each other,

the light-shielding resin includes a bonding portion that is sandwiched between the first portion and the second portion and in contact with the substrate,

the first light-blocking portion includes two joint portions spaced apart from each other as viewed in the thickness direction, with the bonding portion positioned therebetween, and

each of the joint portions is connected to both of the first portion and the second portion.

2. The optical apparatus according to claim 1 , wherein the first light-blocking portion extends across the light-emitting element as viewed in the first direction.

3. The optical apparatus according to claim 1 , wherein the bonding, portion overlaps the light-emitting element in a second direction perpendicular to both of the thickness direction and the first direction.

4. The optical apparatus according to claim 1 , wherein each of the first portion and the second portion is in a form of a strip elongated in a second direction perpendicular to both of the thickness direction and the first direction.

5. The optical apparatus according to claim 1 , wherein the wiring pattern includes a light-emitting. element pad on which the light-emitting element is bonded.

6. The optical apparatus according to claim 5 , wherein the wiring pattern includes a second light-blocking portion interposed between the light-shielding resin and the substrate, and

the second light-blocking portion overlaps the light-emitting element pad in the first direction.

7. The optical apparatus according to claim 6 , wherein the second light-blocking portion includes a portion covered by the second light-transmitting resin.

8. The optical apparatus according to claim 6 , wherein the second light-blocking portion is connected to the first light-blocking portion.

9. The optical apparatus according to claim 6 , wherein the wiring pattern includes a third light-blocking portion interposed between the light-shielding resin and the substrate,

the third light-blocking portion overlaps the light-emitting element pad in the first direction, and

the light-emitting element pad is positioned between the second light-blocking portion and the third light-blocking portion as viewed in the first direction.

10. The optical apparatus according to claim 9 , wherein the third light-blocking portion includes a portion covered by the second light-transmitting resin.

11. The optical apparatus according to claim 9 , wherein the third light-blocking portion is connected to the first light-blocking portion.

12. The optical apparatus according to claim 9 , further comprising a wire bonded to the light-emitting element, wherein the wiring pattern includes a wire bonding pad on which the wire is bonded, and

the third light-blocking portion is electrically connected to the wire bonding pad.

13. The optical apparatus according to claim 5 , further comprising a wire bonded to the light-emitting element, wherein the wiring pattern includes a wire bonding pad on which the wire is bonded, and a linking portion connected to the light-emitting element pad and the first light-blocking portion.

14. The optical apparatus according to claim 1 , wherein the light-emitting element includes a cathode electrode and an anode electrode, and

the first light-blocking portion is electrically connected to the cathode electrode.

15. The optical apparatus according to claim 1 , wherein the first light-blocking blocking portion is a ground electrode.

16. The optical apparatus according to claim 1 , wherein the wiring pattern includes a light-receiving element pad on which the light-receiving element is arranged, and a connecting portion connected to the light-receiving element pad and the first light-blocking portion.

17. The optical apparatus according to claim 1 , wherein the first light-blocking portion includes a portion covered by the second light-transmitting resin.

18. The optical apparatus according to claim 1 , wherein the wiring pattern includes a mounting terminal on a side of the substrate which is opposite from a side where the first light-blocking portion is provided.

19. The optical apparatus according to claim 18 , further comprising a through-hole electrode electrically connected to the mounting terminal and penetrating the substrate.

20. The optical apparatus according to claim 1 , wherein the first light-blocking portion is formed with an opening defined by the first portion, the second portion and the two joint portions, the opening extends through the first light-blocking portion in the thickness direction, and the opening has an open end an entirety of which is closed by the substrate.

Priority Claims (4)
JP 2011-009366 · Jan 20, 2011 · national
JP 2011-032400 · Feb 17, 2011 · national
JP 2011-032401 · Feb 17, 2011 · national
JP 2011-052040 · Mar 9, 2011 · national
Continuity (2)
Continuation 13980446
Related Publication 20150287704A1 · Oct 8, 2015