| 摘要 |
This invention discloses a process for rapidly and economically replicating microstructures on polymeric substrates. During the process, a die with protruded microstructures is rapidly heated to above the polymer softening temperature, pressed onto a cold polymer substrate, and subsequently rapidly cooled for die separation. When the heated die contacts the polymer substrate, localized melting occurs at the contacting locations between the substrate and the to-be-replicated microstructure. The resulted melts are confined locally, forming localized spots for compression molding. Bulk deformation of these localized melts results in microstructure replication. In addition to reduction in cycle time, the new process improves dimensional accuracy of replicated microstructures due to uncoupling of microfabrication with macrofabrication.
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