| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid state memory device constituting a record system which can record a large amount of information though it has less capacity, in a three dimensional structure solid state memory device. SOLUTION: This device is provided with a solid state storage member 1 recording information by irradiating it with a laser beam 2A from a semiconductor laser 2 and varying an optical state, a semiconductor laser 2 provided closely at a surface of a solid state storage member 1, converging the laser beam, and irradiating one point of an information recording region 1A in the solid state storage member 1 with the laser beam 2A. |
