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Optoelectronics & Communications

Transparent conductors for EMI shielding


3M recently announced a new portfolio of 3M Transparent Conductors used in consumer mobile devices for electromagnetic interference (EMI) shielding and touch sensor applications. The portfolio provides designers and engineers a range of solutions to address the increasingly demanding construction of electronic devices by alleviating EMI interface issues and improving touch sensor performance, ultimately bringing products to the market faster.

The 3M family of transparent conductors gives designers and engineers the ability to choose their product based upon their need for optical clarity and sheet resistance. The product portfolio has been developed to exceed current optical and transparency expectations, improve performance against EMI interference, and fit a variety of needs.

"The new family of Transparent Conductors from 3M supports increasing industry demands for thinner and thinner devices that have an increasing amount of sensors and radiation interference," said Bret Haldin, business development manager at 3M Electronics Markets Materials Division.

3M Transparent Conductors are available in non-patterned electrically conductive/EMI shielding films and, later this year, patterned electrically conductive/EMI shielding films. These patterned films also offer very low sheet resistance and narrow interconnect width for improved touch sensor capabilities.

3M Transparent Conductors offer unmatched design flexibility, and can be bent around curved surfaces with better optical performance at the same conductivity values as current Indium Tin Oxide (ITO) products.