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. 28, 2009
Filed:
Jan. 18, 2005
Naohiro Makihira, Tokyo, JP;
Satoshi Imasu, Tokyo, JP;
Masanao Sato, Tokyo, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
A burn-in process for a semiconductor integrated circuit device includes a first process of positioning bump electrodes of the semiconductor integrated circuit device with respect to pads of a socket having detachment mechanisms, a second process of pressing the bump electrodes against the pads by weighting the semiconductor integrated circuit device, and a third process of detaching the bump electrodes from the pads by exerting force on the semiconductor integrated circuit device in a direction opposite to a weighting direction of the second process. Automatic insertion and detachment of a semiconductor integrated circuit chip in a burn-in test is facilitated by detaching the bump electrodes from the pads by pushing up the semiconductor integrated circuit device.