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. 20, 2000
Filed:
Nov. 13, 1997
Fuminobu Ono, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In semiconductor device manufacturing apparatus and method, in a joining process of a semiconductor pellet (2) and a package (1), the semiconductor pellet (2) is kept to a temperature equilibrium state under an actual use temperature condition while a low melting-point soldering member (3) is interposed between the semiconductor pellet (2) and the package (1), and the electrode pads (9) on the upper surface of the semiconductor pellet (2) and the electrode terminals (8) of the collet (5), which is electrically connected to the output terminal of a high voltage electric pulse source (4), are fitted and electrically connected to each other. Subsequently, a high voltage electric pulse is produced in the high voltage electric pulse source (4) and applied to the electrode pads (9) to melt the low melting-point soldering member (3), causing joining of the package (1) and the semiconductor pellet (2). The joining treatment can be performed under the actual use temperature condition of the semiconductor pellet (2), and thermal stress to the semiconductor pellet (2) is suppressed and the lifetime of the semiconductor pellet (2) can be increased.