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:
Apr. 05, 2005
Filed:
Aug. 27, 2003
Applicants:
Hans-georg Mensch, Neunburg, DE;
Thomas Spöttl, Regensburg, DE;
Inventors:
Hans-Georg Mensch, Neunburg, DE;
Thomas Spöttl, Regensburg, DE;
Assignee:
Infineon Technologies AG, Munich, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L023/28 ;
U.S. Cl.
CPC ...
Abstract
A selective encapsulation is produced which covers the connection pads and bonding wires with a potting compound and leaves free active regions, in particular a bearing area for a finger in a fingerprint sensor, by the chip surface being selectively adapted by different roughness or coating and/or the viscosity of the potting compound being altered by irradiation thereof.