阅读说明：本技术 发光元件搭载用基板以及发光装置 (Substrate for mounting light-emitting element and light-emitting device ) 是由 古久保洋二 案浦雅德 川上武 于 2019-03-06 设计创作，主要内容包括：发光元件搭载用基板(A1)具备：基板(10),包含陶瓷；元件用端子(11a),被设置于基板(10)的表面(10a),搭载发光元件(30)；电源用端子(12a),被设置于基板(10),连接外部电源；以及布线部(14a),被设置于基板(10)的内部,将元件用端子(11a)与电源用端子(12a)电连接。此外,布线部(14a)具有：第1导体(15a),在基板(10)的面方向延伸；以及第2导体(16a),相对于第1导体(15a)在与表面(10a)相反的一侧大致平行地延伸,与第1导体(15a)并联地连接。(A light-emitting element mounting substrate (A1) is provided with: a substrate (10) comprising a ceramic; an element terminal (11a) which is provided on the surface (10a) of the substrate (10) and on which the light-emitting element (30) is mounted; a power supply terminal (12a) provided on the substrate (10) and connected to an external power supply; and a wiring section (14a) which is provided inside the substrate (10) and electrically connects the element terminal (11a) and the power supply terminal (12 a). The wiring portion (14a) further includes: a1 st conductor (15a) extending in the surface direction of the substrate (10); and a2 nd conductor (16a) extending substantially parallel to the 1 st conductor (15a) on the side opposite to the surface (10a) and connected in parallel to the 1 st conductor (15 a).)

1. A substrate for mounting a light emitting element includes:

a substrate comprising a ceramic;

an element terminal provided on a surface of the substrate and on which a light-emitting element is mounted;

a power supply terminal provided on the substrate and connected to an external power supply; and

a wiring portion provided inside the substrate and electrically connecting the element terminal and the power supply terminal,

the wiring portion has:

a1 st conductor extending in a surface direction of the substrate; and

and a2 nd conductor extending substantially parallel to the 1 st conductor on a side opposite to the surface and connected in parallel to the 1 st conductor.

2. The substrate for mounting a light-emitting element according to claim 1,

the wiring portion has:

a1 st via conductor extending in a thickness direction of the substrate and connecting the element terminal to the 1 st conductor;

a2 nd via conductor extending in a thickness direction of the substrate and connecting the power supply terminal and the 1 st conductor; and

and a3 rd and a4 th via hole conductors extending in the thickness direction of the substrate and connecting the 1 st and 2 nd conductors.

3. The substrate for mounting a light-emitting element according to claim 2,

in a plan view of the substrate, the 1 st via conductor and the 3 rd via conductor are arranged at substantially the same position, and the 2 nd via conductor and the 4 th via conductor are arranged at substantially the same position.

4. The substrate for mounting a light-emitting element according to claim 2,

in a plan view of the substrate, the 1 st via conductor and the 3 rd via conductor are disposed at different positions, and the 2 nd via conductor and the 4 th via conductor are disposed at different positions.

5. The substrate for mounting a light-emitting element according to claim 1,

the wiring portion has:

a1 st via conductor extending in a thickness direction of the substrate and connecting the element terminal to one of the 1 st conductor and the 2 nd conductor;

a2 nd via conductor extending in a thickness direction of the substrate and connecting the power supply terminal to the other of the 1 st conductor and the 2 nd conductor; and

and a3 rd and a4 th via hole conductors extending in the thickness direction of the substrate and connecting the 1 st and 2 nd conductors.

6. The substrate for mounting a light-emitting element according to claim 5,

the 1 st conductor extending between the 3 rd and 4 th via conductors is substantially equal in length to the 2 nd conductor extending between the 3 rd and 4 th via conductors.

7. The substrate for mounting a light-emitting element according to claim 1,

the wiring portion has:

a1 st via conductor extending in a thickness direction of the substrate and connecting the element terminal to the 2 nd conductor;

a2 nd via conductor extending in a thickness direction of the substrate and connecting the power supply terminal to the 2 nd conductor; and

and a3 rd and a4 th via hole conductors extending in the thickness direction of the substrate and connecting the 1 st and 2 nd conductors.

8. The substrate for mounting a light-emitting element according to any one of claims 1 to 7,

the 2 nd conductor is wider than the 1 st conductor.

9. The substrate for mounting a light-emitting element according to any one of claims 1 to 8,

in a case where the substrate is bisected in the thickness direction, the 1 st conductor and the 2 nd conductor are both disposed on the surface side.

10. The substrate for mounting a light-emitting element according to any one of claims 1 to 9,

the wiring portion has: and a3 rd conductor extending substantially parallel to the 2 nd conductor on a side opposite to the surface and connected in parallel to the 2 nd conductor.

11. A light-emitting device is provided with:

the substrate for mounting a light-emitting element according to any one of claims 1 to 10; and

and a light-emitting element mounted on the element terminal of the light-emitting element mounting substrate.

Technical Field

The disclosed embodiments relate to a light-emitting element mounting substrate and a light-emitting device.

Background

Conventionally, as a light-emitting element mounting substrate for mounting a light-emitting element, there is known a substrate including: a light-emitting element connection terminal pad and an external connection terminal pad formed on the insulating substrate; and a conductor wiring formed on the insulating substrate and electrically connecting the two pads (see, for example, patent document 1).

Prior art documents

Patent document

Patent document 1: japanese patent laid-open publication No. 2010-199167

Disclosure of Invention

Drawings

Fig. 1A is a perspective view of a light-emitting element mounting substrate according to an embodiment.

FIG. 1B is a cross-sectional view taken along line A-A of FIG. 1A.

FIG. 1C is a cross-sectional view taken along line B-B of FIG. 1A.

FIG. 1D is a cross-sectional view taken along line C-C of FIG. 1A.

FIG. 1E is a cross-sectional view taken along line D-D of FIG. 1A.

Fig. 2 is a cross-sectional view of a light-emitting element mounting substrate according to modification 1 of the embodiment.

Fig. 3 is a cross-sectional view of a light-emitting element mounting substrate according to modification 2 of the embodiment.

Fig. 4 is a cross-sectional view of a light-emitting element mounting substrate according to modification 3 of the embodiment.

Fig. 5 is a cross-sectional view of a light-emitting element mounting substrate according to modification 4 of the embodiment.

Fig. 6 is a cross-sectional view of a light-emitting element mounting substrate according to modification 5 of the embodiment.

Fig. 7A is a cross-sectional view of a light-emitting element mounting substrate according to modification 6 of the embodiment.

Fig. 7B is another cross-sectional view of the light-emitting element mounting substrate according to modification 6 of the embodiment.

Fig. 8 is a plan view showing one manufacturing process of the light-emitting element mounting substrate according to the embodiment.

Fig. 9 is a plan view showing another manufacturing process of the light-emitting element mounting substrate according to the embodiment.

Fig. 10 is a plan view showing another manufacturing process of the light-emitting element mounting substrate according to the embodiment.

Fig. 11 is a sectional view showing another manufacturing process of the light-emitting element mounting substrate according to the embodiment.

A light-emitting element mounting substrate according to an aspect of an embodiment includes: a substrate comprising a ceramic; an element terminal provided on a surface of the substrate and on which a light-emitting element is mounted; a power supply terminal provided on the substrate and connected to an external power supply; and a wiring portion provided inside the substrate and electrically connecting the element terminal and the power supply terminal. Further, the wiring portion has: a1 st conductor extending in a surface direction of the substrate; and a2 nd conductor extending substantially parallel to the 1 st conductor on a side opposite to the surface and connected in parallel to the 1 st conductor.

In addition, a light-emitting device according to an aspect of an embodiment includes: the above-described substrate for mounting a light-emitting element; and a light emitting element mounted on the element terminal of the light emitting element mounting substrate.