Transfer unit of test handler and method of operating the same

摘要

A transfer unit of a test handler includes a base frame, a floating assembly, and an arm part. The base frame includes an inserted portion having a penetration hole. The inserted portion including an upper inserted portion disposed near an upper surface of the inserted portion, a lower portion disposed near a lower portion of the inserted portion and a middle inserted portion disposed between the upper inserted portion and the lower inserted portion. The floating assembly is inserted in the penetration hole of the base frame. The floating assembly includes a floating part, an elastic element, and a coupling element. The floating assembly moves back and forth, to left and right sides, and up and down, or flows within a predetermined angle range in the penetration hole.

主权项

1. A transfer unit of a test handler, the transfer unit comprising:
a base frame including a first inserted portion, the first inserted portion including a penetration hole; a floating assembly inserted in the penetration hole of the base frame, the floating assembly including a floating part, an elastic element disposed on the floating part, and a coupling element coupling at a lower portion of the floating part; and an arm part coupled to the coupling element of the floating assembly, wherein the first inserted portion includes an upper inserted portion disposed near an upper surface of the first inserted portion, a lower inserted portion disposed near a lower portion of the first inserted portion, and a middle inserted portion disposed between the upper inserted portion and the lower inserted portion, an inner diameter of the upper inserted portion being larger than an inner diameter of the lower inserted portion, and the middle inserted portion having a tapered surface such that an inner diameter of the middle inserted portion gradually decreases towards the lower inserted portion, wherein the floating assembly is configured to move back and forth, left and right, and up and down, or configured to float within a predetermined angle range in the penetration hole, and wherein the base frame comprises an upper cap to cover upper portions of the penetration hole and the floating part, the elastic element is inserted into an inside of a recess region of the upper cap, and a diameter of the upper portion of the penetration hole is larger than a diameter of the inside of the recess region of the upper cap.