Patent ID: 7314536

Claim:
A method for pairing an upper half-disc and a lower half-disc of an optical disc, the method comprising: loading the upper half-disc into an upper housing; loading the lower half-disc into a lower housing; dispensing a bonding material onto a surface of at least one of the lower half-disc and the upper half-disc; bringing the upper housing and the lower housing together to form a chamber between the upper housing and the lower housing, reducing the pressure within the chamber to a first pressure below an ambient pressure; and bringing the upper half-disc and the lower half-disc into close proximity within the chamber to distribute the bonding material between the upper surface of the lower half-disc and the lower surface of the upper half-disc and form a paired disc, wherein the lower half-disc is supported on a pair plate in the lower housing and wherein bringing the upper half-disc and the lower half-disc into close proximity within the chamber comprises increasing a pressure below a flexible diaphragm in the lower housing from a second pressure to a pressure greater than the pressure in the chamber, causing the flexible diaphragm to flex upwards and displace the pair plate upwards.