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:
Nov. 02, 1999
Filed:
Dec. 20, 1996
Jae June Kim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon City, KR;
Abstract
A stacking and soldering apparatus for a three dimensional stack package devices includes a first base plate for receiving the first individual package devices to be stacked and having a heater for heating metal lead portions of the first individual package devices and; a second base plate for receiving the second individual package devices to be stacked and having a heater for heating metal lead portions of the second individual package devices. A package loader is used for transferring the individual packages to the first and the second base plates; and a transferring device is used for transferring the first individual package devices in the first base plate to the second base plate. A flux applying tool applies a solder flux to the metal lead portions of the first individual package devices during the transfer from the first to the second base plate; and a pick up tool picks up and places the transferred first individual package devices onto the second individual package devices so that the metal lead portions of the first individual package devices are in contact with the metal lead portions of the second individual package device. A solder joint is formed between the metal lead portions of the two individuals packages, either by thermo-compression of the pick up tool, or by heating of the second base plate.