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:
Feb. 24, 2004
Filed:
Mar. 11, 2002
Dong Suh Lee, Seoul, KR;
Mirae Corporation, Choongchungnam, KR;
Abstract
An elevation apparatus for a handler used for loading/unloading integrated circuit devices into/from a test tray is provide that includes an up/down block slidably mounted to be vertically displaceable with respect to a base plate. A nozzle block is affixed to the up/down block for displacement therewith. An aligner assembly is disposed above the nozzle block and supported by a pair of upper base blocks that are slidably mounted for displacement relative to the base plate. An elastically coupling assembly couples the pair of upper base blocks to the up/down block, the elastic coupling assembly upwardly displacing the pair of upper base blocks responsive to a corresponding upward displacement of the up/down block. The apparatus also includes a drive assembly secured to the base plate and coupled to the up/down block for vertically displacing the up/down block. The drive assembly is driven to first provide a long-up operation, where the up/down block is displaced to displace the aligner assembly into contact with a test tray and provide support thereof. The drive assembly is secondly driven to provide a short-up operation, where the up/down block is displaced to displace the test tray into contact with a plurality of supporting jaws. Then, the drive assembly is thirdly driven to displace the up/down block to now displace the nozzle block into contact with the aligner assembly, while the displacement of the aligner assembly is blocked by the contact between the test tray and the supporting jaws. The elastic coupling assembly elastically compensates for the third displacement of the up/down block.