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. 23, 2013
Filed:
Mar. 31, 2005
Joachim Müller, Fellbach, DE;
Gunnar Schöpe, Linnich, DE;
Hildegard Siekmann, Kerkrade, NL;
Bernd Rech, Berlin, DE;
Tobias Repmann, Alzenau, DE;
Wolfgang Apenzeller, Titz, DE;
Brigitte Sehrbrock, Jülich, DE;
Joachim Müller, Fellbach, DE;
Gunnar Schöpe, Linnich, DE;
Hildegard Siekmann, Kerkrade, NL;
Bernd Rech, Berlin, DE;
Tobias Repmann, Alzenau, DE;
Wolfgang Apenzeller, Titz, DE;
Brigitte Sehrbrock, Jülich, DE;
Abstract
A simple process is disclosed for treating substrates having pre-structured zinc oxide layers on rigid or flexible supports. The ZnO is treated with an etching medium then with a cleaning liquid. The treatment with the etching and cleaning liquids is carried out while the substrate is conveyed through a device. The process is technically simple to implement and makes it possible to regularly and homogeneously roughen and texturize ZnO layers of up to 1 m. The device for treating substrates having pre-structured zinc oxide layers on rigid or flexible supports has for that purpose a first means for treating the substrate with an etching liquid, a second means for treating the substrate with a cleaning liquid, and another means, in particular transport rollers, for conveying the substrate from the first to the second means.