tailieunhanh - MEMS Advanced Materials and Fabrication Methods - Nat. Aca. Press Part 4

Tham khảo tài liệu 'mems advanced materials and fabrication methods - nat. aca. press part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Microelectromechanical Systems Advanced Materials and Fabrication Methods 1997 http openbook 0309059801 html copyright 1997 2000 The National Academy of Sciences all rights reserved ADVANCED MATERIALSAND EAHRICATION METHODS EOR MICROELECTROMECHANICAL SYSTEMS influenced by ink-drop weight. The horizontal dotted line in the figure represents the minimum drop-size the human eye can perceive. Drop weights below this threshold can produce photographic-quality images. Ink-jet printing thus has the potential to replace silver halide film as a medium for photographic prints. This prospect is expected to cause some dislocations in the photographic industiy as electronic cameras that can be easily interfaced with computers and printers begin to produce high-quality graphics for presentations and other uses. Ink-jet technology is also being studied for possible use in the deposition and patterning of sensitive biochemicals . clinical-assay reagents in the production of biomedical devices. Ink-jet technology has evolved for the most part via internal investment by commercial companies. These investments have already reaped significant benefits in the marketplace. Approximately 67 million ink-jet printers were in existence worldwide as of 1995 Barth 1995 . This large base of printers promises a dependable revenue stream for vendors of disposable ink-jet pens. Customers can expect continued improvement in print quality and speed at a reasonable cost. Accelerometers Government mandates for passive-restraint devices in automobiles created a large market for air bags . passive restraint devices in which an explosive gas-generating charge is triggered by an electrical signal from a crash sensor . MEMS technology has been adapted to this market because it promises high reliability ruggedness and cost effectiveness. Several MEMS technologies have vied for the crashsensor market which requires both self-testing for reliability and accurate rapid acceleration .