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www.us-tech.com


Astoria, NY — Keystone Electronics has debuted a new line of snap-action “Key-Pad” dome contacts, specifically designed as momentary contacts for PCBs, flex circuits, membrane switches, and discrete switches. Equipped with a unique four-


legged shape, these dome switches offer excellent durability, reliability and versatility while maintaining exceptional tactile feel for single or double-sided printed circuit boards, flex circuits, and membrane switch panels. They are offered in Mini, Compact and Maxi styles, with diam- eters of 0.33 in. (8.4 mm), 0.39 in.


(9.9 mm) and 0.48 in. (12.2 mm) respectively, and with trip forces


from 7.8 to 14.8 oz (0.2 to 0.4 kg). Made from nickel-plated stain-


less steel, these domes are built for harsh environments, such as micro - waves, vending machines or any application requiring substantial tac- tile response along with extensive actuation life. Supplied on tape-and-reel, they


Snap-action metal dome switches.


can be used with most vacuum and mechanical pick-and-place assembly systems. Domes are also supplied in convenient tubes for individual placement applications. They are available from stock through Keystone’s global distribution net-


July, 2017 Keystone Debuts Metal “Key-Pad” Dome Switches


work and can be ordered online. Adhesive-backed spacer material


for creating custom arrays is also available. Spacer material is designed to provide the proper spacing between the circuit board, the dome and the graphic layer. Made from clear poly- ester, the spacer material is supplied in sheets for ease of customization,


assembly and inspection. Contact: Keystone Electronics


Corp., 31-07 20th Road, Astoria, NY 11105 % 800-221-5510 E-mail: kec@keyelco.com Web: www.keyelco.com


“The Full Spectrum of AOI Solutions”


Tech-Etch Offers Military EMI/RFI Shielding


Plymouth, MA — Tech-Etch is now offering a variety of EMI shielding products for critical military and aerospace applications. Supershield is a silicone elastomer filled with con- ductive metal particles to provide high EMI shielding effectiveness and an environmental seal. The Supershield family uses


eight basic conducting media with material specifications to MIL-DTL- 83528 requirements. It can be sup- plied in a variety of sheet sizes, stan- dard extrusion sections, or as stan- dard or custom die-cut gaskets. Other conductive elastomers include Multi - shield with a matrix of wires embed- ded in silicone rubber and aligned per- pendicular to the contact surfaces.


Military and aerospace EMI/RFI shields.


Monoshield consists of a fine BOOTH #7724


Monel or aluminum, which is ex - panded (as per MIL-S-46044) and impregnated with a 50 durometer sil- icone rubber. Weaveshield is made up of a woven aluminum wire screen impregnated with either a neoprene or silicone elastomer. For shielding larger openings, the company’s quiet vents provide ratings of up to 90 dB attenuation. Shielding performance results


from two 0.25 in. (6.4 mm) thick hon- eycomb panels assembled in a cross- cell configuration. Shielded fan vents are designed to provide EMI shield- ing and maximum airflow without degrading fan output. A complete line of beryllium-copper finger stock gaskets and wire mesh gaskets is


also available. Contact: Tech-Etch, Inc., 45


5940 Darwin Court, Carlsbad, CA 92008 +1 (760) 438-1138 sales@visionpro.com www.machinevisionproducts.com See at SEMICON West, Booth 7724


Aldrin Road, Plymouth, MA 02360 % 508-747-0300


E-mail: sales@tech-etch.com Web: www.tech-etch.com


Lead Frame


Wafer & Die


BGA


Wire Bond


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