Patent Number: 6,254,716

Title: Apparatus and method for use in the manufacture of multiple layer optical disc

Abstract: An apparatus for joining two optical discs into a disc assembly having multiple layers of data has a disc processing chamber for supporting the first and second discs, wherein each of the discs has a layer of data on a first side thereof. The processing chamber is fluidly connected to a tank containing a bonding fluid. A vacuum pump is selectively connectable to the processing chamber and the tank for selectively evacuating air out of each. An actuator is operatively mounted within the processing chamber and supports the first disc. The actuator moves the first side of the first disc into contact with the first side of second disc after the processing chamber has been evacuated and a bonding fluid is placed on one of the first and second discs, thereby forming a disc assembly having multiple layers of data.

Inventors: Russell; Robert Lowell (Cloverdale, IN), Chullino, Jr.; David Jeffrey (Terre Haute, IN)

Assignee: Sony Corporation

International Classification: B29C 65/00 (20060101); B29C 65/52 (20060101); B32B 031/20 (); B29C 065/54 ()

Expiration Date: 07/03/2018