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AssigneeKitano Engineering Co., Ltd.
InventorsRyoko Kitano, Masami Inouchi, Mikuni Amo
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This invention is purported to provide a method and an apparatus for precisely peeling both of disc-shaped substrates by a simple device without requiring a great peeling force. The peeling apparatus comprising a holding table 1 adapted to carry an optical disc composed of upper and lower disc-shaped substrates D2, D1 laminated to each other, a boss 2 disposed centrally of the holding table 1 allowed gas to blow between the disc-shaped substrates, and a suction means 3 peripherally of the holding table 1 to suck pulverized adhesive dust exhausted from said disc-shaped substrates when the two disc-shaped substrates are peeled off from each other, said suction means being provided a suction groove 31 so formed to correspond to the periphery end of the two disc-shaped substrates, said holding table being provided with sucking and holding means for sucking and holding the two disc-shaped substrates.
A method for peeling off upper and lower disc-shaped substrates from each other wherein said upper and lower disc-shaped substrates are laminated by an adhesive to obtain an optical disc, characterized in that gas is blown from a center hole in said optical disc between said upper and lower disc-shaped substrates to separate both of said disc-shaped substrates from each other.
A peeling apparatus characterized by comprising a holding table for placing an optical disc composed of upper and lower disc-shaped substrates laminated to each other;
The peeling apparatus comprising a holding table adapted to carry an optical disc composed of upper and lower disc-shaped substrates laminated to each other, a boss disposed centrally of the holding table allowed gas to blow between the disc-shaped substrates, and a suction means peripherally of the holding table to suck pulverized adhesive dust exhausted from said disc-shaped substrates when the two disc-shaped substrates are peeled off from each other, said suction means being provided a suction groove so formed to correspond to the periphery end of the two disc-shaped substrates, said holding table being provided with sucking and holding means for sucking and holding the two disc-shaped substrates.
Dependencies are inferred from the claim text.