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. 18, 1996
Filed:
Aug. 25, 1994
Keiichi Fukumoto, Kitamoto, JP;
Noriyuki Igarashi, Gyoda, JP;
Advantest Corporation, Tokyo, JP;
Abstract
An improved structure for a spacing frame for interfacing a test head of an IC tester and an IC handler wherein the spacing frame can be changed in a short period of time without moving the test head of the IC tester or the IC handler. The spacing frame and the temperature chamber provide a unique structure which is capable of inserting and replacing the spacing frame within a vertical space in the chamber and locking the spacing frame in the predetermined position in the chamber. The spacing frame structure includes a spacing frame body to interface the IC handler and the IC tester which has a socket guide at its top which is horizontally extended from the body and a flange at its middle portion, a temperature chamber having an opening for receiving said spacing frame body therein, a performance board connected to a bottom of the spacing frame body for providing electric signals from the IC device to be tested to the IC tester, an IC socket for receiving the IC device to be tested therein, and a locking mechanism to provide a vertical movement to the spacing frame body such that the spacing frame body is free when it is in an upper position and is locked when it is in a lower position.