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:
Aug. 15, 2000
Filed:
May. 12, 1998
Advantest Corporation, Tokyo, JP;
Abstract
An IC tester is provided which is capable of preventing the temperature of an IC heated to a predetermined temperature from falling during the test. A box-like housing 70 constructed of a thermally insulating material is mounted on a performance board PB. An IC socket SK and a socket guide 35 are accommodated in a space bounded by the box-like housing 70 and the performance board PB. A through-aperture 71 is formed in the top wall of the housing 70 for passing an IC under test carried by a movable rod 60R of a Z-axis driver into and out of the interior of the housing 70. An opening/closing plate 72 is disposed over the housing 70 for movement in a horizontal direction. This plate 72 is adapted to close the through-aperture 71 of the housing 70 when the movable rod 60R is outside of the housing to thereby maintain the interior of the box-like 70 in an almost thermally insulated condition. In addition, a cover member 64 is disposed for closing the through-aperture 72A in the plate 72 when the IC under test is in contact with the IC socket to aid in maintaining the interior of the housing in a thermally insulated condition.