Atotech Presents a Novel e’less Copper and Blackening Process for Touchscreen Application at the Eurodisplay 2017

Atotech is one of the world’s leading manufacturers of specialty chemicals and equipment for the printed circuit board, IC-substrate and semiconductor industries, as well as for the decorative and functional surface finishing industries. As touchscreens become higher in demand and traditional build-up technology based on vapor deposited Indium Tin Oxide (ITO) reach its limitations, the new metal mesh technology to produce the sensor grid for advanced touch screens and sensors finds its momentum. While ITO has a low conductivity and is a brittle material, copper meshes feature a low resistance – ideal for use in large displays – coupled with the mechanical properties required for flexible or curved touch screens.

Visitors to the Eurodisplay 2017 are invited to learn more about this novel, additive and ITO free process for the formation of metal mesh and TFT electrodes.

When: Thursday, November 2, at 3:40pm
Where: Berlin, Melia Hotel, Friedrichstraße 103
Presenter: Roger Massey, Business Development Manager at Atotech GmbH

Cupratech TS D3
Atotech’s metallization specialists have developed a new and tailor-made electroless copper process which allows the full additive build-up of copper meshes based on catalytic palladium or silver layers. “Cupratech TS D3 features quick initiation and a high deposition rate of up to 140 nm/min for a minimized attack on the conductor tracks,” states Lars-Eric Pribyl, Global Product Manager Desmear and Metallization at Atotech Deutschland GmbH. “The process deposits a fine grain copper layer with high conductivity over the entire sensor. It is mass production proven and has been optimized to enable an excellent track shape.”

Telotech TS Black
Touch sensors are used in applications where the user does not want to see the conductor tracks within their display. “With Telotech TS Black, Atotech has developed a unique blackening process that greatly reduces the visibility of copper conductors on transparent substrates like PET,” continues Pribyl. “The process features very mild process conditions and provides a uniform black/dark finish to copper structures and surfaces. Like Cupratech TS D3, Telotech TS Black is applied in horizontal or reel-to-reel manufacturing equipment.”

Eurodisplay will be held from October 31 to November 2, 2017, in Berlin, Germany and discusses the latest development in all types of displays, electronics, and their impact on society.