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Joseph Ogando, Regional Editor -- Design News, May 21, 2001
Platens
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 ±1% 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.
For information, enter 589
Silicone
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.
For information, enter 590
Foil tape
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.
For information, enter 591
Air filter
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.
For information, enter 592
Magnifier
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.
For information, enter 593
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