A liquid dispensing module and nozzle or die tip for discharging at least one liquid filament. There are attachments between the foregoing parts, and leak preventing connections between parts. These multiple access channels are reused by other user terminals 2 in adjacent and other beam regions. On the contrary, if the CPU does not initiate any updating, the pixel clock and the memory read clock are tuned down to the smallest possible values to conserve electricity. The epitaxial layer has a first or a second conductivity type. A biosensor comprising the electrode strip is also provided.