Yumi Yang, Youngkyu Hwang, Hyun A Cho, Jung-Hoon Song, Seong-Ju Park, John A. Rogers and Heung Cho Ko Microcontact Printing: Arrays of Silicon Micro/Nanostructures Formed in Suspended Configurations for Deterministic Assembly Using Flat and Roller-Type Stamps (Small 4/2011) Small 7
The cover image shows structures of single crystalline silicon in the suspended and tethered confi gurations that facilitate their deterministic assembly using the technique of transfer printing. Polymer pedestals (red) hold the silicon structures in their lithographically defi ned positions for release onto an elastomeric stamp, in a manner that involves minimal adhesion to the underlying substrate, and which therefore preserves their spatial order and enhances yields. Diverse shapes (e.g., straight or curved edges), thicknesses (between 55 nm and 3 μm), and sizes (areas of 4000 μm2 to 117 mm2) of structures in various layouts (regular or irregular arrays, with dense or sparse coverages) can be achieved, using either flat or cylindrical roller-type stamps. For more information, please read the Full Paper “Arrays of Silicon Micro/Nanostructures Formed in Suspended Configurations for Deterministic Assembly Using Flat and Roller-Type Stamps” by J. A. Rogers, H. C. Ko, and co-workers, beginning on page 484.
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