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In addition, the cost of masks is eliminated, which can be important Tiffany Elsa Peretti Teardrop pendant a large number of masks are needed, such as would be the case in a manufacturing scenario that requires boards of a large number of different designs but of each design in a small volume. However, because LDI tools pattern the photoresist in a pixel-by-pixel, serial manner (as in a laser printer), Tiffany Elsa Peretti Teardrop Pendant Silver Set deliver low throughputs and can typically reach minimum feature sizes (MFS) of about 1 to 2 mils. LDI systems also require new, high-sensitivity resists. LPI systems image the resist by projection printing in a parallel mode (as in a photocopier). They work with conventional dryfilm or liquid photoresists, requiring no change Tiffany Elsa Peretti Teardrop ring any process step; these systems have demonstrated minimum feature size capability down to 4 pm, or 0.16 mil (and even lower for other applications).The core technology developed for the LPI systems'"5 is illustrated schematically in Figure 2. The board and the mask (i.e., artwork) are rigidly mounted on a single-planar scanning stage Tiffany Elsa Peretti Teardrop set  is capable of moving them in unison in both ? and y directions. The illumination system comprises an excimer laser light source and a beam-processing optical system. The excimer laser emits several tens of watts of UV radiation at 35 1 nm, a wavelength well suited for imaging conventional photoresists designed for mercury arc lamp exposure. The laser emits no infrared or other unwanted radiation. The beam-processing system illuminates the mask from below (through a cutout in the stage) in a uniform, hexagon-shaped illumination region that is typically 50 mm in size (vertex-to-vertex).