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Sheets Form Fast PCB Shields

Aug. 12, 2015
Ready-to-use shielding sheets are available in prefabricated SAE and metric sizes, and can be easily cut to required forms using scissors.

Electromagnetic-interference (EMI) shielding can be quickly added to a printed-circuit-board (PCB) design via Tech-Etch’s ProtoShield shielding sheets, which can be easily cut into a required shape and size. A pair of scissors and a straight-edge tool are all that’s needed to form the shape and size needed to add shielding to a PCB prototype.

The ProtoShield sheets are depth-etched with a checkerboard pattern and come in two sizes—0.25-in. squares and in a metric version with 5-mm squares. The shielding sheets feature nickel-silver composition for good corrosion resistance and ease of soldering, without requiring additional finishing or plating. A prototype formed with the shielding sheets can be directly soldered to a PCB for ease of assembly.

Free samples of the shielding sheets are available upon request from the supplier. Standard versions are 0.10 in. thick with nickel-silver composition and CDA770 alloy material, in an overall size of 5.5 × 5.5 in. in 0.25-in. increments. The metric version offers 0.254-mm-thick nickel-silver composition and CDA770 alloy material, in an overall size of 1.25-mm square and 5-mm grid increments.

Tech-Etch Inc., 45 Aldrin Rd., Plymouth, MA 02360; (508) 747-0300, E-mail: [email protected]

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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