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U.S. Demand for EMI/RFI Shielding Options to Exceed $600 Million by 2008, Says BCC Research
April 24, 2003 |Estimated reading time: 1 minute
Norwalk, Conn. -- According to a soon-to-be-released updated report from Business Communications Co Inc., RGB-066Y EMI: Materials and Technologies, the U.S. demand for EMI/RFI shielding options was estimated at $523 million in 2002 and is expected to approach $630 million by 2008.
Shielding of electronic devices from electromagnetic radiation is essentially a "band-aid" phenomenon since it adds no value to the product.
The major shielding options include: metal cabinets; conductive coatings (electroless plating, vacuum metallization and conductive paints); conductive plastics/elastomers; laminates/tapes; and a widely diverse "other" category which includes gaskets, metal sheet/foils, wire mesh, windows, connectors, etc.
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:
- Ever-increasing frequencies driven by higher chip speeds, in which traditional shielding options do not perform as well as with lower frequencies, resulting in leakage of extraneous electronic signals (a controversial subject because EMI shielding producers claim that their current products can be effective at higher frequencies);
- Increasing cost pressures due to a stagnant economy especially in the telecommunications industry, driving cheaper shielding alternatives;
- Increased overall potential of the EMI business due to continual development of Bluetooth technology (wireless);
- Environmental pressures on metal disposal, which affect conductive coating technologies;
- Controversy over whether redesigning circuitry can solve EMI problems occurring at higher frequencies;
- Continued development of more costly "absorbent" EMI technologies which are more effective at higher frequencies than current "reflective" shielding technologies (excluding gaskets which are the most prominent of the absorptive traditional technologies); and
- Long-term potential of fiber optics, which could eventually eliminate the need for EMI shielding.
For more information on Business Communications Co. Inc., visit www.bccresearch.com.