Inkjet printers are the most common type of printing devices used in home environments, and they are also frequently used personal printers in offices. There are two key reasons for the widespread adoption of inkjet printers: low purchase price and very impressive image quality that equals or exceeds that of traditional photographic film. At the heart of an inkjet printer are a large number of high-precision microscopic nozzles that eject ink onto the paper. These nozzles are typically about 10 micrometers in diameter (roughly 1/10th of the diameter of a human hair). It is not unusual for a home inkjet printer to contain thousands of nozzles in all, several hundred for each color of ink. The diameter of each of these nozzles is fabricated with sub-micrometer accuracy to achieve consistent and uniform ink drop volume, which is essential for consistent and uniform color density on the page. Several different precision micro-fabrication techniques for inkjet nozzles are employed in comm...