| 摘要 |
<p>This method for producing a glass substrate for an information recording medium is a method for producing a glass substrate for magnetic recording, said method being provided with: a step for molding a disc-shaped glass substrate; a first cleaning step (S191) for, upon polishing the glass substrate using an abrasive, cleaning the polished glass substrate using a brush; and a second cleaning step (S192) for, subsequent to the first cleaning step (S191), emitting a liquid to which ultrasonic waves have been applied to the glass substrate so as to clean the glass substrate. The second cleaning step (S192) is started without immersing the glass substrate for which the first cleaning step (S191) has been completed in another liquid and before the surface of the glass substrate has dried.</p> |
