Patent ID: 6678307
Filing Date: 2004-01-13
Classification: B82Y,H01S

Abstract:
A semiconductor light-emitting device which emits light vertical to a top surface, comprising:a substrate having a first principal surface and a second principal surface; a first electrode formed on the first principal surface of the substrate; a multi-layered structure having a light-emitting part, a groove, and a peripheral part which is formed on the second principal surface of the substrate; the light-emitting part being of a column shape substantially surrounded by the groove extending from a surface of the multi-layered structure and substantially isolated from the peripheral part by the groove, the groove having deeper portions and shallower portions alternately arranged, the light-emitting part comprising, a first multi-layered reflecting mirror layer formed on the second principal surface of the substrate, the deeper portions of the groove extending into the first multi-layered reflecting mirror layer, a semiconductor active layer formed above the first multi-layered reflecting mirror layer, a second multi-layered reflecting mirror layer formed above the semiconductor active layer, and a current confinement path defined and surrounded by an oxidized region of at least one of the first and second multi-layered reflecting mirror layers, the shallower portions of the groove extending to the oxidized region and having bottoms thereof on the oxidized region; the peripheral part of the multi-layered structure surrounding the light-emitting part via the groove; a second electrode formed on the top surface of the light-emitting part and having an opening formed above the current confinement path, the second electrode being configured to make a current path to the first electrode through the current confinement path; a third electrode for external connection formed on the peripheral part of the multi-layered structure; and a plurality of interconnection conductors bridging between the second and third electrodes to establish electrical connections above the shallower portions of the groove, respectively.