Patent ID: 7002226
Filing Date: 2006-02-21
Classification: G11B

Abstract:
1. A Microelectro mechanical system (MEMS) structure for magneto-optic data storage apparatus, comprising the steps of: (1) forming a matarial layer on a substrate, and forming air bearing shape on said material layer by lithoghraphy and etching, and sandwiching a sacrificial layer between said material layer and a dielectric layer; (2) forming an initial aperture on said dielectric layer by lithography and etching and moving specific portions of said sacrificial layer under said aperture by using an etching solution of said sacrificial layer, and then depositing a conductive layer as an electroplating seed layer on said dielectric layer; (3) reducing said initial aperture by electroplating metal for forming nano-aperture, and then a photoresist film is coated and patterned by lithography and following electroplating step for forming microcoils and a second electroplating pad is applied, wherein said second electroplating pad electrically connect with said microcoils; (4) removing the photoresist film of said step (3) and then etching said electroplating seed layer and coating another photoresist film to mantle said microcoils, fillisters are formed in the said photoresist film by lithography; (5) forming interconnection metal line along said fillisters above said microcoils by electroplating with power supply from said second electroplating pad and removed the photoresist film coated in step (4), then a new photoresist film is coated and patterned to form protruding cylinder-shaped with plate structure above said nano-aperture; and (6) Forming supersphere solid immersion lens (SSIL) above said nano-aperture by reflow process from said protruding cylinder-shaped with plate structure to a sphere-shape structure, and then etching said sacrificial layer with etching solution and separating said substrate.