| 摘要 |
<p>A magnetic recording medium comprises a non-magnetic substrate (10, 54) having a textured upper surface and a magnetic layer (12) formed on the upper surface. The textured upper surface contains a plurality of protrusions extending above the upper surface to a height (Hb) of about 7.5 nm to about 30 nm and has a substantially circular rim, with a diameter ( DIAMETER ) of about 3 mu m to about 15 mu m, around a central hole extending into the upper surface. The medium is textured with a pulsed laser light beam through a multiple lens focusing system. The pulsed, multiple lens focused laser light beam can be used to texture a substrate (10, 54), underlayer (11) or magnetic layer (12). The resulting laser textured magnetic recording medium exhibits improved flying stability, glide performance and reliability. <IMAGE></p> |
