Printing micro-contact

Fig. 20 Patterning DNA arrays by the micro-contact printing method...

Fig. 10.10. Micro-contact printing process. Schematic illustration of two methods for producing high resolution stamps. The first step of both involves patterning a layer of resist on a flat substrate. This structure, known as the master , is converted to a stamp either by etching or by molding. In the first case (right frames), the resist acts as a mask for etching the underlying substrate. Removing the resist yields a stamp. This structure can be...

Micro-contact printing (pCP) uses high resolution rubber stamps with inks (e.g. alkanethiols) that form self assembled monolayers (SAMs) on the surface (e.g. thin gold film) that is printed [13]. In one pCP approach, these SAMs act as resists for etching material in the unprinted areas, as illustrated in Fig. 10.11. 

Fig. 10.11. Steps for micro-contact printing. The stamp is first inked with a solution of a material that is capable of forming a self assembled monolayer (SAM) on the substrate that will be printed. In the case illustrated here, the ink is a millimolar concentration of hexadecanethiol (HDT) in ethanol. The substrate consists of a thin layer of Au on a flat support. Removing the stamp after a few...

Micro-contact printing can be used in plastic electronics to form high-resolution source/drain electrodes with short channel lengths [14]. Depositing an organic semiconductor on top of these electrodes yields a transistor with a layout like that... 

Fig. 10.17. Mechanically flexible plastic active matrix circuit (left frame) for an electronic paperlike display (right frame). Micro-contact printing defined the critical features in the circuit.

Micro-contact Printing A Path to Reel-to-reel Electronics... 

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