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:
Jan. 22, 2002
Filed:
Jan. 21, 2000
Toshiaki Oda, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A memory package is provided being capable of implementing two-fold memory capacity and two different memory functions on the same mounting area as would be required in the case of mounting in one stage. This is achieved by providing the land on the surface of the package composed of one memory device having a ROM-type or RAM-type memory core and by stacking, on the land, the other memory device also having the ROM-type or RAM memory core in two stages in a vertical direction and by mounting internal circuits, on the upper and lower memory devices having the ROM-type or RAM-type memory cores, adapted to control so that the address areas of the upper and lower memory devices having the ROM-type or RAM-type memory cores may not be overlapping.