| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a microreactor chip by joining a plurality of substrates including the substrates opposed to each other, on the opposed surface of at least one of which a micro-channel is formed, to the other without using an adhesive, by which the substrates can be joined uniformly to the other without intruding an air bubble into the joining interface, which causes a problem particularly, of the side of the channel, leakage of a fluid is not caused and the inside diameter and shape of the channel are not changed when joined, a problem of defective joining is not caused even when the final microreactor chip is thin and the microreactor chip is not warped. SOLUTION: This method for manufacturing the microreactor chip by joining the plurality of substrates to the other including the substrates opposed to each other, on the opposed surface of at least one of which a micro-channel is formed, so that the micro-channel-formed surface is joined to the opposed surface of the the channel-unformed substrate as joining surfaces comprises steps of: arranging a minute projection in the part to be joined on the minute flow passage-formed surface at the least; closely sticking the minute projection to the opposed surface of the the channel-unformed substrate and; joining the joining surfaces to each other by irradiating the minute projection with ultrasonic waves. COPYRIGHT: (C)2005,JPO&NCIPI
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