Patent ID: 8710387
Filing Date: 2014-04-29
Classification: G01R

Abstract:
1. An LED package chip classification system, comprising: a rotation unit for transporting a plurality of LED package chips, wherein the rotation unit includes at least one rotary turntable, a plurality of receiving portions formed on the rotary turntable, and a plurality of suction-exhaust dual-purpose openings respectively disposed in the receiving portions, each receiving portion selectively receives at least one of the LED package chips, and each LED package chip has a positive electrode pad and a negative electrode pad disposed on the bottom side thereof; a bearing unit including at least one bearing base, wherein the at least one rotary turntable is disposed on the at least one bearing base; a chip test unit including at least one chip test module adjacent to the rotation unit for testing each LED package chip; and a chip classification unit including a plurality of chip classification modules adjacent to the rotation unit for classifying the LED package chips that have been tested by the at least one chip test module, wherein the chip classification modules surround the at least one rotary turntable; a transportation unit including at least one transportation element adjacent to the rotary turntable for sequentially transporting each LED package chip to the corresponding receiving portion; and a chip position detection unit including a light emitting element disposed above the receiving portion adjacent to the at least one transportation element, and a chip position detection element disposed under the receiving portion corresponding to the light emitting element; wherein light beams generated by the light emitting element are selectively projected onto the top surface of the LED package chip or transmitted to the chip position detection element through a through hole penetrating through the at least one bearing base and disposed under the receiving portion in order to judge whether the LED package chip is transmitted from the at least one transportation element to the receiving portion.