ANISOTROPICALLY CONDUCTIVE ADHESIVE, LIGHT EMITTING DEVICE, AND METHOD FOR PRODUCING ANISOTROPICALLY CONDUCTIVE ADHESIVE

摘要

Provided is a light emitting device high in the intensity of emitted light. A blue LED chip (20) having a peak of emitted light in a wavelength range of at least 360 nm and at most 500 nm is adhered to an electrode substrate (11) by an anisotropic conductive adhesive (12). A light reflecting layer made of a silver alloy on a surface of each conductive particle (1) contained in the anisotropic conductive adhesive (12), and has high reflectance with respect to blue light. The light reflecting layer is formed by sputtering of a sputtering target that contains Ag, Bi, and Nd with the content ratio of Bi set to at least 0.1 weight % and at most 3.0 weight % and the content ratio of Nd set to at least 0.1 weight % and at most 2.0 weight % with respect to the total weight of Ag, Bi, and Nd of 100 weight %. The conductive particle has high anti-migration properties.