Patent ID: 7096911
Filing Date: 2006-08-29
Classification: B32B,G02F,Y10T

Abstract:
1. An apparatus for manufacturing a panel display including first and second substrates bonded to each other, the apparatus comprising: a treatment chamber; first and second holding units, which oppose each other in the treatment chamber, wherein the first and second holding units respectively hold the first and second substrates, and each holding unit includes a vacuum chuck device for holding the associated substrate using a difference in pressure and electrostatic chuck device for electrostatically attracting the associated substrate; a vacuum pump, which depressurizes the treatment chamber; and a control device, which controls the treatment chamber, the first and second holding units, and the vacuum pump, the control device having a plurality of attraction modes including a vacuum attraction mode in which the vacuum chuck device is activated and an electrostatic attraction mode in which the electrostatic chuck device is activated, and the control device controlling the attraction modes based on the pressure in the treatment chamber; wherein when the pressure in the treatment chamber is atmospheric pressure, the control device instructs each holding unit to attract the associated substrate using the associated vacuum chuck device, and wherein when the treatment chamber is depressurized, the control device instructs each holding unit to attract the associated substrate using at least the electrostatic chuck device and substantially equalizes the pressure applied by each vacuum chuck device with the pressure in the treatment chamber.