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. 24, 1990
Filed:
Dec. 15, 1988
Osamu Morioka, Kakogawa, JP;
Keizo Tokushige, Matsubara, JP;
Akeo Kimura, Iruma, JP;
Takahiro Nihei, Fukushima, JP;
Kabushiki Kaisha Kobe Seikosho, Kobe, JP;
Japan LSI Co., Ltd., Tokyo, JP;
Abstract
An apparatus for testing IC devices for performance at a low temperature comprises a cooling disk disposed within a test chamber and adapted to be cooled with liquid nitrogen of like refrigerant for cooling the IC device in contact or proximity therewith. A cooling bag for use as cooling means in testing IC devices at a low temperature comprises a bag adapted to intimately contact the IC device and having a refrigerant enclosed therein. Another apparatus for testing IC devices at a low temperature comprises a cooling bag reeved around a drive roller and an idler roller in the form of a belt conveyor and adapted to come into intimate contact from above with IC devices being transported on a conveyor to cool the devices.