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. 01, 2010
Filed:
Mar. 13, 2008
Tetsuya Koishi, Tokyo, JP;
Tetsuya Koishi, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
Provided is a test apparatus that tests a device under test, including a test head that generates a test signal for testing the device under test; a socket board onto which is mounted the device under test, that transmits signals between the test head and the device under test; a plurality of actuators that are disposed on a lower surface of the socket board to correspond one-to-one with support positions thereof, and that each have a state thereof changed according to a control signal supplied thereto to independently move the corresponding support position in a direction vertical to the lower surface of the socket board; and a connection control section that supplies a first control signal to each actuator to set each actuator to be in the same state, and thereafter supplies commonly to each actuator a second control signal that gradually decreases an apparatus separation distance between the socket board and the test head.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile