Micro-stamping

Ruiz A, Buzanska L, Gilliland D et al (2008) Micro-stamped surfaces for the patterned growth of neural stem cells. Biomaterials 29(36) 4766-4774... 

Other important techniques currently studied in the area of wet casting are screen printing, micro-stamping, and hot microprint contact.57... 

In combination of die-sinking EDM and wire-cut EDM, high precision inserts can be manufactured for the production of micro-plastic parts. Figure 4.43 shows the compiexity and precision of this type of process on the example of micro-stamping. Figure 4.44 iilustrates another combination part. 

Fruetel, J., Renzi, R., Crocker, R., VanderNoot, V., Stamps, J., Shokair, I., Yee, D., Application of microseparation arrays to the detection of biotoxins in aerosol backgrounds. Micro Total Analysis Systems, Proceedings 5th ytTAS Symposium, Monterey, CA, Oct. 21-25, 2001, 523-524. 

Soft lithography is an emerging method for micro- and nanofabrication of two- or three-dimensional structures on surfaces.73 78 This method developed by Whitesides and coworkers uses elastomeric stamps, molds, and conformable photomasks for creating patterns as small as tens of nanometers on substrates. Depending on the... 

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...

A variation of the TCSPC technique does not build up photon distributions but stores information about each individual photon. This is called time tag , time stamp , list , or FIFO mode. The memory is configured as a FIFO buffer. For each photon, this method stores the time in the signal period ( micro time ), the time from the start of the experiment ( macro time ), and the data word at the channel input. During the measurement, the FIFO is continuously read, and the photon data are transferred into the main memory or to the hard disc of a computer. Advanced TCSPC devices often can be configured either to build up a multidimensional photon distribution or to store the individual photons. The FIFO mode is described in Sect. 3.6, page 43. 

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