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:
Dec. 06, 2005
Filed:
Feb. 04, 2002
Manfred Frank, Nittendorf, DE;
Werner Kröninger, Neutraubling, DE;
Renate Köpnick, Regensburg, DE;
Richard Hummel, Burglengenfeld, DE;
Reinhard Fischbach, München, DE;
Heinz Opolka, Regensburg, DE;
Manfred Frank, Nittendorf, DE;
Werner Kröninger, Neutraubling, DE;
Renate Köpnick, Regensburg, DE;
Richard Hummel, Burglengenfeld, DE;
Reinhard Fischbach, München, DE;
Heinz Opolka, Regensburg, DE;
Infineon Technologies AG, Munich, DE;
Abstract
To increase the scratch resistance of a surface passivation, in particular, for fingerprint sensors, a antifrictional layer is applied to reduce the shearing forces. The antifrictional layer includes fat, oil, surfactants and/or wax. The antifrictional layer is preferably an emulsion including water, paraffin oil, propylene glycol, stearic acid, palmitic acid, TEA, beeswax, carbormer 954, methylparaben, propylparaben and possibly perfume.