Patent ID: 7042475
Filing Date: 2006-05-09
Classification: G11B

Abstract:
1. A method of producing a hybrid structure, said hybrid structure comprising: a. a first region storing selectively retrievable data in a data layer of substantially uniform composition containing a substantially planar first level, b. a second region comprising a second track portion, at least some of said second track portion displaced from said first track portion in the direction of said transverse data segment extent, a length of said second track portion having a longitudinal second track portion extent, a microscopic transverse second track portion extent normal to said longitudinal second track portion extent and co-planar therewith in a second track portion plane, and a microscopic vertical second track portion extent normal to said second track portion plane, said method comprising the steps of: c. providing a structure in which said first features, said data segment and said second track portion can be produced; d. causing energy transmitting beam means to produce said first features and said data segment in said first region; and e. causing energy transmitting beam means to produce said second track portion in said second region.