Nichia Corporation

Ryuma Marume

Masaaki Katsumata

Shinichi Daikoku

Yoshiki Sato

Yoshikazu Matsuda

Eiko Minato

Satoru Niimi

A light-emitting module includes a light source unit, and a light guide member surrounding the light source unit in a plan view and including a first hole portion opening on a side of a first surface of the light guide member and a second hole portion and a third hole portion, the second hole portion and the third hole portion are aligned in a first direction, a depth of the first hole portion from the first surface is shallower than a depth of the second hole portion from the first surface and a depth of the third hole portion from the first surface, and in the plan view, a maximum length of the second hole portion in the first direction is longer than a maximum length of the second hole portion in a second direction orthogonal to the first direction.

Light-emitting module

A light-emitting device comprising a package comprising a light-emitting element comprising a first surface and a second surface opposite to the first surface, a first light-transmissive member arranged on the second surface of the light-emitting element, paired electrodes at the first surface of the light-emitting element, and a first covering member covering the light-emitting element such that the paired electrodes are exposed from the first covering member. The light-emitting device further comprises a light-guiding plate on which the package is placed, and a second covering member arranged on the light-guiding plate and covering laterally the package. The light-emitting device further comprises paired wirings continuously covering the paired electrodes exposed and the first covering members and being connected to the paired electrodes respectively. The paired wirings are formed by irradiation of laser light on a metal paste layer continuously covering the paired electrodes and the first covering member to remove the metal paste layer between the paired electrodes, the metal paste layer comprising a mixture of a resin and metal powder.

Method for manufacturing light-emitting device

A method for manufacturing a light-emitting device includes preparing an intermediate product; the product includes a light-emitting element provided with paired electrodes at a first surface and a first covering member covering the light-emitting element such that portions of surfaces of the paired electrodes are exposed. A metal paste layer is formed, continuously covering the exposed portion of the paired electrodes and the first covering member. Paired wirings are formed for preventing the paired electrodes from being short-circuited. The metal paste layer on the paired electrodes and the metal paste layer on the first covering member are irradiated with laser light to remove the metal paste layer between the paired electrodes and a portion of the metal paste layer on the first covering member.

Growing community of inventors

Anan, Japan

Ryuma Marume