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. 12, 2007
Filed:
Jul. 11, 2005
Applicant:
Holger Hubner, Baldham, DE;
Inventor:
Holger Hubner, Baldham, DE;
Assignee:
Infineon Technologies AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/44 (2006.01); H01L 21/48 (2006.01); H01L 21/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A the semiconductor chip stack in which an intermediate space between semiconductor chips is filled at least along one edge of the upper face of a top chip by a spacer composed of a polymer which can be structured photographically, of photoresist, of an encapsulation compound or an adhesive, and is sealed from the outside. During the passivating process, the connecting contact pads are kept free of the material of this spacer for bonding wires or other external connections on the upper face of the bottom chip.