METHOD AND APPARATUS FOR BONDING OPTICAL DISC SUBSTRATES TOGETHER, AND METHOD FOR SUPPLYING LIQUID MATERIAL
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United States of America Patent
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app pub date -
Sep 17, 2007
filing date -
Apr 27, 2000
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Abandoned
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Abstract
The object of the present invention is to significantly inhibit the formation of voids between substrates bonded together when a liquid adhesive is supplied onto an optical disc substrate or when the optical disc substrate is bonded to another optical disc substrate. Accordingly, the present invention discloses a method for bonding two optical disc substrates together which comprises the steps of joining the optical disc substrates together with an adhesive and curing the adhesive, wherein the adhesive is supplied onto the optical disc substrate by an electric field formed between the adhesive-supplying nozzle, for supplying the adhesive onto the optical disc substrate, and the optical disc substrate, and the two optical disc substrates are then joined together and subjected to spun by a spinning process.
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