5.6. Micro Embossing Processes

The term hot embossing or embossing can be used for a large scale of different structuring processes based on an embossing step. The following section will give a short overview of the manifold of these processes. Nevertheless, a clear definition of the terminology cannot be found in literature.

5.6.1. Roller Embossing

Roller embossing, or roll-to-roll embossing, is a well-established modification of the hot embossing process. Using rolls instead of plates, continuous molding can be achieved with advantages regarding the molding times and disadvantages regarding the height and the aspect ratio of the molded structures (Fig. 5.24). Tan et al. [29] used this approach in 1998–called roller nanoimprint lithography–to ...

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