Patent ID: 9040321
Filing Date: 2015-05-26
Classification: H01L

Abstract:
1. A method for manufacturing LED (light emitting diode) packages comprising: providing a lead frame, the lead frame comprising a plurality of pairs of electrodes arranged in a matrix, and a plurality of first and second tie bars, each pair of electrodes comprising a first electrode and a second electrode adjacent to the first electrode, the first electrodes being arranged in a plurality of columns, and the second electrodes being arranged in a plurality of columns, wherein each first electrode comprises an elongated first main body and a first extension electrode protruding laterally from one end of the first main body, each second electrode comprises an elongated second main body and a second extension electrode protruding laterally from one end of the second main body, the first electrodes arranged in the same column are connected by a corresponding first tie bar, and the second electrodes arranged in the same column are connected by a corresponding second tie bar; forming a plurality of molded bodies engaging with the pairs of the first and second electrodes, each molded body surrounding and covering a plurality of pairs of the first and second electrodes disposed in two adjacent columns, and each molded body forming a plurality of reflecting cups, each reflecting cup defining a receiving cavity therein and being located over a corresponding pair of the first and second electrodes, wherein the first and second extension electrodes, together with the first and second tie bars, are exposed from an outer periphery of a corresponding molded body; preforming a plurality of first grooves at a bottom of each molded body, each first groove being located between two adjacent pairs of the first and second electrodes disposed in a corresponding molded body and extending transversely through opposite sides of the corresponding molded body, wherein a depth of the first groove is smaller than heights of the first and second electrodes; disposing a plurality of LED dies in the receiving cavities, respectively, each LED die being electrically connected to the corresponding pair of first and second electrodes exposed at a bottom of a corresponding receiving cavity; and cutting the molded bodies along edges thereof defining the first grooves in a first direction and then along a second direction perpendicular to the first direction to obtain a plurality of individual LED packages, each LED package comprising a pair of the first and second electrodes, a reflecting cup surrounding the pair of the first and second electrodes, and an LED die disposed in a receiving cavity of the reflecting cup.