Abstract:
A substrate laminating apparatus has an upper stage for holding an upper glass substrate and a lower stage for holding a lower glass substrate, and which laminates together the upper glass substrate and the lower glass substrate in a condition that both of the substrates are positioned relative to each other. An image pickup device photographs position detecting marks on the upper and lower glass substrates, and a moving device changes a relative distance between the image pickup device and the upper/lower glass substrates. A data acquiring device acquires data about the relative distance between the upper/lower glass substrates and the image pickup device, and a control device controls the moving device based on data about the relative distance.
Abstract:
A bonding apparatus which bonds two substrates together with a sealing agent applied to, in the form of a frame, on one of the substrates. The apparatus comprises a first retaining table having a retaining surface which retains a first substrate thereon, a second retaining table opposed to the first retaining table and having a retaining surface which retains a second substrate thereon, a nonviscous elastic material provided on that part of the retaining surface of at least one of the retaining tables which retains the substrate thereon, and first and second drive sources which relatively drive the first and second retaining tables in the vertical direction so that the substrates on the respective retaining surfaces of the retaining tables are bonded together with the sealing agent.
Abstract:
There is disclosed an electrostatic attracting method in which a direct-current voltage is applied to an electrode disposed at a table formed of a dielectric material to attract/hold a substrate onto a holding surface of the table with an electrostatic force produced thereby, the method comprising a first step of applying a voltage having a predetermined polarity to the electrode to charge the holding surface with an electric charge having a polarity different from that applied to the electrode, a second step of holding the substrate in contact with the holding surface to prevent electric charges charged on the holding surface from disappearing, and a third step of applying a voltage having a polarity different from that applied in the first step to the electrode in a state in which the substrate contacts the holding surface to produce an electric charge having the same polarity as that charged at the holding surface in the first step on the holding surface of the table, and attracting/holding the substrate with the electric charge together with the electric charge charged on the holding surface in the first step.