The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 1997
Filed:
May. 11, 1995
Hiroyuki Takahashi, Kazo, JP;
Kenpei Suzuki, Gyoda, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A device transfer mechanism of an IC test handler is disclosed which is low cost, requires less space and has an inexpensive and simple structure. The device transfer mechanism can readily change a soak time for applying predetermined temperature to the devices to be tested according to the device test time. A device transfer mechanism includes a circular-orbit rotation table with multiple pockets that stores the devices by a unit of n pieces on the disk-shaped rotation table, and at least three arms each of which has a contact arm with a suction section that sucks the devices by a unit of n pieces at the tip of each arm. A rotation storage arm can be additionally provided to transfer the devices by arranging multiple arms with pockets that store devices 71 by a unit of n pieces at the tip of each arm. In a further aspect of the transfer mechanism, pockets that store the devices by a unit of n pieces at the tip of each arm can be disposed along with a reciprocal storage arm that transfers the devices in a reciprocal movement to a storage buffer section.