Patent ID: 8809820

Claim:
A lamp head module comprising: an array of light emitting devices, the array having a high aspect ratio in which a length of the array is greater than a width of the array, wherein the light emitting devices are closely spaced to create a high fill factor and includes a plurality of groups of electrically seriesed light emitting devices in which the plurality of groups are connected in electrical parallel; a submount of monolithic construction including a plurality of L-shaped patterned circuit material layers, wherein each of the plurality of L-shaped patterned circuit material layers includes an arm portion and a stem portion, wherein the arm portion functions as a light emitting device bond pad and the stem portion functions as both a wire bond pad and a circuit trace; wherein each light emitting device of a group of electrically seriesed light emitting devices of the plurality of groups of electrically seriesed light emitting devices is affixed to a corresponding arm portion of the submount; and wherein the plurality of stem portions are located substantially external to an area defined by the length and width of the array, run substantially parallel to the length of the array and collectively perform a primary current carrying function for current flow between adjacent light emitting devices of the group of electrically seriesed light emitting devices; and a multi-layer flex circuit including an anode layer and a cathode layer, the multi-layer flex circuit having formed therein a rectangular aperture within which the submount and the array are located; wherein the anode layer of the multi-layer flex circuit is electrically coupled to a light emitting device bond pad associated with a first light emitting device of the group of electrically seriesed light emitting devices; and wherein the cathode layer of the multi-layer flex circuit is electrically coupled to a circuit trace associated with a last light emitting device of the group of electrically seriesed light emitting devices.