Patent ID: 7576367
Filing Date: 2009-08-18
Classification: H01L

Abstract:
1. A light-emitting semiconductor device comprising: (a) a substrate of electroconductive material having a first and a second opposite major surface; (b) a light-generating semiconductor region formed on the first major surface of the substrate and comprising a plurality of semiconductor layers for generating light, the light-generating semiconductor region having a first major surface from which the light is emitted, a second major surface held against the first major surface of the substrate, and a cavity extending therethrough between the first and the second major surface thereof; (c) a bonding pad covering a part of the first major surface of the light-generating semiconductor region and the cavity of the light-generating semiconductor region; (d) a substrate electrode on the substrate; (e) an overvoltage protector disposed between the bonding pad and the second major surface of the substrate and electrically connected to both of the bonding pad and the substrate electrode; (f) a current-spreading film of electrically conducting, optically transparent material on the first major surface of the light-generating semiconductor region; (g) a transparent overlay of electrically insulating material overlying the current-spreading film and partly placed between the bonding pad and the first major surface of the light-generating semiconductor region, the transparent overlay having a plurality of slits; and (h) connector means overlying the transparent overlay and electrically coupled to the bonding pad, the connector means being less in resistivity than the current-spreading film and being formed to include parts received in the slits in the transparent overlay into contact with the current-spreading film for electrically connecting the bonding pad to the current-spreading film, wherein the connector means comprises a plurality of connector strips each having one end in electrical contact with the bonding pad and all extending substantially radially therefrom over the transparent overlay, each connector strip being received in part in one slit in the transparent overlay into electrical contact with the current-spreading film.