Wiring substrate, light-emitting device, and manufacturing methods thereof
AssigneeNichia Corporation
InventorsAtsushi Hosokawa, Masaaki Katsumata
Life of this patent
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Abstract
A wiring substrate includes: a base body having an insulating property and including a first surface and a second surface on a side opposite the first surface; a resist portion covering at least part of the first surface and at least a part of the second surface of the base body and including a hole portion having a predetermined pattern; and a wiring line disposed in the hole portion of the resist portion so as to be in contact with the base body. In a cross-sectional view in a thickness direction of the base body, a length of an exposed surface of the wiring line exposed from the resist portion is less than a length of a contact surface of the wiring line in contact with the base body.
Claims18
A wiring substrate comprising:
- a base body having an insulating property and including a first surface and a second surface on a side opposite the first surface;
- a resist portion covering at least part of the first surface and at least a part of the second surface of the base body and including a hole portion having a predetermined pattern;
- and
- a wiring line disposed in the hole portion of the resist portion so as to be in contact with the base body;
- wherein:
- in a cross-sectional view in a thickness direction of the base body, a length of an exposed surface of the wiring line exposed from the resist portion is less than a length of a contact surface of the wiring line in contact with the base body;
- and
- the wiring line has a volume resistivity of 10 μΩ·cm or less.
A light-emitting device comprising:
- a wiring substrate comprising:
- a base body having an insulating property and including a first surface and a second surface on a side opposite the first surface;
- a resist portion covering at least part of the first surface and at least a part of the second surface of the base body and including a hole portion having a predetermined pattern;
- and
- a wiring line disposed in the hole portion of the resist portion so as to be in contact with the base body, wherein:
- in a cross-sectional view in a thickness direction of the base body, a length of an exposed surface of the wiring line exposed from the resist portion is less than a length of a contact surface of the wiring line in contact with the base body;
- a plurality of light sources aligned in a row direction and a column direction over a first surface of the wiring substrate, each light source comprising a light-emitting element and disposed over the wiring substrate, each light-emitting element comprising a pair of element electrodes;
- a partition groove that partitions and surrounds a predetermined number of the plurality of light sources;
- and
- a light guide member that guides light of the light source to an interior region surrounded by the partition groove.
A wiring substrate comprising:
- a base body having an insulating property and including a first surface and a second surface on a side opposite the first surface;
- a resist portion covering at least part of the first surface and at least a part of the second surface of the base body and including a hole portion having a predetermined pattern;
- and
- a wiring line disposed in the hole portion of the resist portion so as to be in contact with the base body;
- wherein:
- in a cross-sectional view in a thickness direction of the base body, a length of an exposed surface of the wiring line exposed from the resist portion is less than a length of a contact surface of the wiring line in contact with the base body;
- and
- the wiring line contains a plurality of bubbles, each having a diameter of 5 um or less.
Dependencies are inferred from the claim text.