Bake and chill platens for wafer processing applications incorporate high-density, mineral-insulated heating elements cast onto 99.7%-pure aluminum. Cooling tubes produced from various materials can be run systematically with the heat pattern for uniform chill requirements. Temperature uniformity across the surface of the platens can achieve Ī1% of the maximum operating temperature. Zero porosity of the castings allows for increased operating temperatures to 850F.
Durex Industries, 190 Detroit St., Cary, IL 60013-2979; FAX (847) 639-2199; www.durexindustries.com.
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A two-part silicone adhesive sealant can be applied robotically or manually to a range of metals, plastics, and synthetic surfaces. The product, which is mixed in a 1:1 ratio, cures depending on the amount of heat applied. Since its cure times are heat-dependent, the material can be deployed to match production line needs with times ranging from under 30 seconds to over 24 hours. Heat can be applied using circulating air ovens, conveyor-tunnel ovens, or portable heat guns for manual assembly in the field.
Specialty Silicone Products, Corporate Technology Park, Ballston Spa, NY 12020; FAX (518) 885-4682; www.sspinc.com.
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Aluminum-foil tape for EMI/RFI shielding on microwave components, cables, antennas, and motors features an insulation value of 155C and a cure cycle of 1 hour at 150C. It is constructed of 0.0018-inch aluminum foil backing and 0.002-inch conductive acrylic adhesive. Thickness is 0.0038 inch, with peel strength of 35 oz/inch of width. Breaking strength is 15 lbs/inch of width and elongation at break is 5%.
Lamart Corp., 16 Richmond St., Clifton, NJ 07015; FAX (973) 772-3673.
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The Flex-Frame air filter is for use in electronic equipment that cannot accept a rigid air-filter frame because of internal enclosure obstructions or the necessity to follow a curved track. These "bend-to-fit" filters use a flame-retardant, polypropylene frame rated UL 94V-0 and can be specified in thicknesses ranging from 0.03 to 0.12 inch. A solvent-resistant, two-part epoxy bonding material securely unites the frame and filter media for improved strength.
Universal Air Filter Co., 1624 Sauget Industrial Pkwy., Sauget, IL 62206; FAX (618) 271-8808; www.uaf.com.
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The Wide Field Magnifier, model ONS-0395, features 4x magnification power and an achromatic 1-inch diameter lens. The lens has been corrected for chromatic errors to provide a clear, distortion-free image that is in focus at the center and outer edges. A variable focusing mechanism utilizes an adjustable helicoids screw for precision focusing. The field of view for the magnifier is 1.77 x 1.77 inches.
GEI International Inc., Box 6849, Syracuse, NY 13217-6849; FAX (315) 463-9034; www.gei-int.com.
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