3 EMI Shielding Tapes A wide variety of tapes for EMI shielding and grounding Copper, aluminum, and tin-plated copper foil backings Conformable copper-plated fabric backing Smooth and embossed foil surfaces Conductive and nonconductive acrylic adhesives Liners on all tapes for diecutting and handling ease Long-term proven 1 durability and reliability Customer Service Our sales force is supported by an 3M has been providing adhesive-backed extensive nationwide network of In addition to the high standard of quality foil tapes for EMI (electromagnetic distributors who can provide prompt that goes into each roll of shielding tape, interference) shielding and grounding and efficient service and delivery 3M customers receive other important applications for over forty years. Test in response to all of your shielding value-added benefits. Customer Service, results and actual in-use experience have tape requirements. Many of our Technical Service, and Manufacturing proven the stability and effectiveness of distributors also offer diecutting and resources are dedicated to maintaining the backings and adhesives over long fabricating services. the highest level of service, quality, and periods of time. delivery. 3M also offers the unique 3M was the first to introduce advantage of global product support and Your How To Resource shielding tape with conductive adhesive, availability through a worldwide network The advantage you get with 3M shielding first with embossed foil backing for of subsidiaries and distributors. tapes is not only superior product, butthrough the adhesiv conductivity, and In addition to handling your order also a reliable source of technical first with tin-plated copper backing for entry needs, our Customer Service solutions. Whether you need assistance to improved shielding, solderability, and Department can put you in contact with select a shielding tape to meet a specific corrosion resistance. your local 3M sales representative, production requirement or to increase identify the distributor offices in your productivity or product performance, our Excellent shielding area, or connect you with our Technical technical expertise is always available. effectiveness Service personnel. 3M sales representatives are always Consistent manufacturing processes For any inquiries or requests ready to assist your engineering, product ensure that all of the 3M EMI regarding 3M EMI Shielding Tapes, development, and purchasing personnel Shielding Tapes exhibit the low contact please contact Customer Service by with answers to technical questions and resistance necessary to achieve the level phone at 800-328-1368 or by FAX at guidance in the selection of the ideal of shielding effectiveness shown on the 800-828-9329. (From the shielding tape for each application. graph below. Maquiladoras, call 512 -984-2666.) Shielding Effectiveness (Far Field) - Typical Values (ASTM-D-4935) 100 1345 90 1245 1183 80 1181 1267 1345 1170 1245 70 1183 1182 1194 60 1181 1170 1267 1194 50 1182 40 0 0 100 200 300 400 500 600 700 800 900 1000 Frequency (MHz) Attenuation (dB)Tape Construction Figure 1: Smooth Backing with Conductive Adhesive Smooth foil backings with conductive adhesive High-strength Unique 3M EMI Shielding Tapes 1170 Foil backing noncorrosive acrylic conductive cross section adhesive particles (aluminum), 1181 (copper) and 1183 (tin-plated copper) are smooth-backed foil tapes that establish secure electrical contact with the application surface by means of a unique adhesive. Well distributed conductive particles in the adhesive provide a multitude of low-resistance paths between the backing and the substrate. (Figure 1) Metal substrate cross section Embossed foil backings The backings of Shielding Tapes 1245 (copper), 1267 (aluminum) and 1345 (tin-plated copper) are impressed with Embossed Backing with an embossed pattern (Figure 2) that Figure 2: protrudes through the acrylic adhesive Through-the-Adhesive Contact to make direct electrical contact with High-strength the application surface. This reliable Foil backing noncorrosive acrylic through-the-adhesive conductivity cross section adhesive system provides stable contact resistance and a high level of shielding effectiveness. Tin-plated foil backings The copper used in 3M EMI Shielding Tapes 1183 (smooth backing) and 1345 (embossed backing) is plated on both sides with tin to provide exceptional Metal-to-metal Metal substrate solderability and resistance to corrosion contact cross section and oxidation. In addition, the tapes remain conductive after oxidation. Smooth foil backing with coils, and attachment of connector tabs Conductive adhesive on nonconductive adhesive both sides on rolled film-and-foil capacitors. 3M Shielding Tape 1194 is a smooth- 3M Shielding Tape 1182 is a copper foil backed copper tape that features the same tape coated on both sides with conductive Adhesive high quality solvent-resistant, acrylic Both the conductive and nonconductive acrylic adhesive. This unique adhesive as other 3M foil tapes. Good construction offers an excellent method versions use the same acid-free, solderability makes it an economical corrosion-resistant acrylic resin. of grounding and bonding conductive choice for applications like connector surfaces. It also exhibits low thermal and cable shielding, grounding, resistance. Tape 1182 is supplied with Ask your 3M Sales Representative electrostatic shielding between a removable liner on each side for ease about 3M Electromagnetic transformer windings, outer wrap for of handling. Compatible Products. Engineering Kit for EMI dispenser box (4 in. x 4 in. x 8.3 in.) Shielding Tapes serves as a desktop reference for the 3M EMI Shielding Tapes have a tapes. The box panels provide basic multitude of uses in electronic design technical information about each tape, and test laboratories. including product number, backing and The 3M Engineering Kit offers adhesive type and thickness, adhesion, ready access to the full line of 3M resistance, and shielding effectiveness. shielding tapes. Priced to enable The kit is available through 3M companies to provide a kit for each of Electrical Markets Division foil tape their engineers, the kit makes specifying, distributors, or it can be ordered in any prototyping, troubleshooting, testing and quantity directly from 3M by calling repairing faster and easier. The compact Customer Service (see page 1). 2