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:
May. 03, 2011
Filed:
Apr. 08, 2005
Erwin Rinaldo Meinders, Eindhoven, NL;
Rolf Antonie Loch, Enschede, NL;
Erwin Rinaldo Meinders, Eindhoven, NL;
Rolf Antonie Loch, Enschede, NL;
Kkoninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a master substrate, a method for making a high density relief structure, and optical discs replicated with the high-density relief structure, the master substrate comprising a substrate layer () and a recording stack deposited on the substrate layer, the recording stack comprising:—an information layer (),—an interface layer () sandwiched between said information layer and the substrate , forming marks and spaces representing an encoded data pattern, wherein said recording material is an alloy comprising at least two materials of the group of materials containing Ge, Sb, Te, In, Se, Bi, Ag, Ga, Sn, Pb, As. A very high-density relief structure is achieved.