| 摘要 |
PROBLEM TO BE SOLVED: To enhance yield by irradiating a laminated disk with UV from both sides and disproportionately and variably controlling the outputs of UV radiated on both the sides in such a way that the warpage of the laminated disk in the radial direction is adjusted in a prescribed range. SOLUTION: Two single-sided optical disks are put in a disk laminator to produce a laminated disk 1 with an uncured UV-curing adhesive held between the two disks and the laminated disk 1 is supported by a disk supporting structure. This 1st laminated disk 1 is irradiated with UV under initial set conditions to cure the UV-curing resin 4 and to stick the two single-sided optical disks to each other. The amount of warpage is measured with an in-line warpage inspecting machine, the inspected data are processed and the intensities of radiations of upper and lower UV radiators 6U and 6D are adjusted and controlled. Subsequent laminated disks 1 are then stuck while carrying out feedback control in accordance with the correlation between the amount of warpage and the intensity of radiation of UV. |
