U.S. demand for EMI/RFI shielding options to Exceed $600 million by 2008.Significant changes in EMI/RFI shielding have taken place recently, primarily in the level of shielding required, the number of small, new applications requiring shielding, the restructuring of industry participants and the disparity in growth rates Growth Rates The compounded annualized rate of growth of a company's revenues, earnings, dividends, or other figures. Notes: Remember, historically high growth rates don't always mean a high rate of growth looking into the future. among shielding options. In spite of the increased appearance of new electronic technologies, such as laptop computers and wireless hand-helds, few new shielding technologies or even enhancements of old technologies have emerged. The major shielding options available in 1998 are still relevant, and only their market shares of total shielding have changed. Most current company product offerings look very much the same as in 1998. According to according to prep. 1. As stated or indicated by; on the authority of: according to historians. 2. In keeping with: according to instructions. 3. an updated report from Business Communications Co. Inc. (Norwalk, CT, www.bccresearch. com), RGB-066Y EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC. : Materials and Technologies, the U.S. demand for electromagnetic interference See EMI. (EMI)/ radio frequency interference See RFI. (hardware, testing) Radio Frequency Interference - (RFI) Electromagnetic radiation which is emitted by electrical circuits carrying rapidly changing signals, as a by-product of their normal operation, and which causes unwanted signals (interference or noise) to be (RFI (Radio Frequency Interference) High-frequency electromagnetic waves that emanate from electronic devices such as chips. RFI - Radio Frequency Interference ) shielding options was estimated at $523 million in 2002 and is expected to approach $630 million by 2008. The major shielding options include: metal cabinets, conductive coatings (electroless plating, vacuum metallization Met`al`li`za´tion n. 1. The act or process of metallizing. and conductive paints), conductive plastics/elastomers, laminates/tapes as well as gaskets, metal sheet/foils, wire mesh, windows and connectors. The growth of each of these shielding options is best measured by overall coverage in square feet, which shows slight increases in use of the least expensive options--metal cabinets--and slight decreases in conductive coatings, led by vacuum metallization. Major issues confronting the EMI market include: the increasing frequencies driven by higher chip speeds, in which traditional shielding options do not perform as well as with lower frequencies; increasing cost pressures due to a stagnant economy, driving cheaper shielding alternatives; increased potential of the EMI business due to continuous development of Bluetooth technology; environmental pressures on metal disposal which affect conductive coating technologies; controversy over whether redesigning circuitry can solve EMI problems occurring at higher frequencies; the continued development of costly absorbent absorbent /ab·sor·bent/ (-sor´bent) 1. able to take in, or suck up and incorporate. 2. a tissue structure involved in absorption. 3. a substance that absorbs or promotes absorption. technologies that are more effective at higher frequencies than current reflective shielding technologies; and the long-term potential of fiber optics fiber optics, transmission of digitized messages or information by light pulses along hair-thin glass fibers. Each fiber is surrounded by a cladding having a high index of refractance so that the light is internally reflected and travels the length of the fiber , which could eventually eliminate the need for EMI shielding.
2002 2003 2008 AAGR %
2003-2008
Conductive coatings 235 239 267 2.2
Metal cabinets 100 106 134 4.8
Laminates/tapes 15 15 19 4.8
Conductive plastics/ 11 11 11 0
elastomers
Other 162 167 198 3.5
Total 523 538 629 3.2
U.S. demand for EMI/RFI shielding options by types,
through 2008 ($ Millions).
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