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:
Mar. 20, 2001
Filed:
Feb. 11, 1999
Kai-Kuang Ho, Feng-Shan, TW;
Te-Sheng Yang, Taipei, TW;
Abstract
A wafer-level chip scale package. The structure is applicable in packing at least two dies into a same package. The volume of the package is approximately equal to the total volume of the packed dies. A first die is provided. A pad redistribution step is performed on the first chip. Using flip chip technique, a second die is connected onto the first die. The first die has a surface area larger than that of the second die. Using a molding process, a molding material is infilled into spaces between the first and the second die. In addition, bumps are formed on the first chip with one ends thereof exposed and the other part covered by the molding material. Solder balls are formed on the exposed end of the bumps as terminals to electrically connect an external circuit or device.