Apparatus for recognizing working position of device...

Details Apparatus for recognizing working position of device... Apparatus for recognizing working position of device...

2005-01-25

2005-01-25

Pert, Evan (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

Reexamination Certificate

active

06847202

ABSTRACT:
An apparatus and method is provided for recognizing a working position of a device transfer system in a semiconductor device test handler. The working position of a transfer unit of the handler is adjusted based on tray and change kit positions to allow components to be quickly and precisely loaded and transferred when various kinds of semiconductor devices are tested in the handler. A laser sensor which detects a color change of an object is provided with the transfer unit, and scans corners of the tray and change kits to acquire position information related to the tray and change kits. The working position of the transfer unit is calculated using basic handler information contained in the control unit of the handler and the acquired information.

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