| 摘要 |
A method of forming at least one primary microstructure on a substrate ( 10 ) is described. A relief structure ( 14 ) is provided for contacting a layer of microstructure forming fluid ( 12 ), the relief structure including (i) at least one primary cavity ( 16 ) which defines the at least one primary microstructure; (ii) at least one secondary cavity ( 18 ) for receiving residual microstructure forming fluid; and (iii) at least one bearing surface ( 24 ) for bearing against the substrate, the at least one bearing surface separating the at least one primary cavity and the at least one secondary cavity. A layer of microstructure forming fluid is provided between the relief structure and the substrate and at least one of the substrate and the relief structure is moved relative to the other so that the bearing surface comes to bear against the substrate. The movement displaces a portion of the microstructure forming fluid to occupy the at least one primary cavity, forming the at least one primary microstructure and displaces the residual microstructure forming fluid to be received by, and at least partially occupy, the at least one secondary cavity.
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