Process for making multiple data storage disk stampers from one master

一种用在数据存储盘模压工艺中的压模的制作方法。该方法包括第一压模的制作，这包括提供一个带有信息层的压模体，并在该信息层上覆盖一个第一金属层。然后从所述第一压模制得第二压模，这包括下列步骤：为形成压模组件，以第二金属层覆盖所述第一金属层，其中，所述第一金属层和第二金属层被粘合在一起；然后从形成的压模组件除下所述第一金属层和第二金属层，形成第二压模，其中，从所述压模组件除下所述第一和第二金属层对于信息层没有破坏性。在一种应用中，所述第一和第二金属层都是镍组成的。 A method of making a stamper for use in a data storage disk molding process. The method includes making a first stamper including the steps of providing a stamper body having an information layer thereon. The information layer is covered with a first metal layer. A second stamper is made from the first stamper, which includes the steps of covering the first metal layer with a second metal layer to form a stamper assembly, wherein the first metal layer and the second metal layer are bonded together. The first metal layer and the second metal layer are removed from the stamper assembly to form the second stamper, wherein removal of the first metal layer and the second metal layer is nondestructive to the information layer. In one application, the first metal layer and the second metal layer are made of nickel.