| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold for manufacturing disc substrates with an improved structure capable of stably forming a protective film having a circular inner peripheral part through the control of the radial and inward spread of a protecting film forming material during the formation of a protecting film to the disc substrate. SOLUTION: An ejector sleeve 50 for releasing a formed disc substrate is projectingly positioned on the cavity forming surface from the projection tip end surface 64 of a registering projection part 66, and a cylindrical stepped surface 78 being perpendicular with respect to the projection tip end surface 64 of the positioning projection part 66 is formed with the outer peripheral surface of the ejector sleeve 50. |
