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:
Feb. 26, 2008
Filed:
Jun. 28, 2005
Martin Dubs, Maienfeld, CH;
Wolfgang Nutt, Balzers, LI;
Helfried Weinzerl, Seal Beach, CA (US);
Thomas Eisenhammer, Azmoos, CH;
Martin Dubs, Maienfeld, CH;
Wolfgang Nutt, Balzers, LI;
Helfried Weinzerl, Seal Beach, CA (US);
Thomas Eisenhammer, Azmoos, CH;
OC Oerlikon Balzers AG, Balzers, LI;
Abstract
A Method for manufacturing an optical disc substrate comprises a first substrate with at least one structured surface, on which an anti-adhesive layer, preferably carbon, is deposited and first layer on top of said anti-adhesive layer. On a second substrate with a structured surface also a layer is deposited. Both substrates are bonded together with the layers facing each other. The separation now easily can take place afterwards alongside the adhesive layer. This way the first layer from the first substrate is being transferred to the second substrate.