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:
Jun. 30, 2015
Filed:
Dec. 21, 2012
Advantest Corporation, Tokyo, JP;
Haruki Nakajima, Tokyo, JP;
ADVANTEST CORPORATION, Tokyo, JP;
Abstract
There is provided a pitch changing apparatus which can change a pitch of DUTs when the DUTs are transferred between trays by a shuttle revolving system. The pitch changing apparatus, which changes the pitch of DUTs, includes a plurality of shuttles which hold DUTs, a first guide rail which guides the plurality of shuttles, a second feeder which feeds the shuttles along the first guide rail at a first pitch, a third feeder which includes a plurality of pins receiving the shuttles from the second feeder and moves the pins along the first guide rail at a second pitch, and a controller which controls a feed rate of the second feeder and a receiving rate of the third feeder.