Conductive Color Coatings

Organization Name

apple inc.

Inventor(s)

Richard K Akrobetu of San Carlos CA (US)

Jozef M Matlak of San Francisco CA (US)

Shinjita Acharya of Santa Clara CA (US)

Brian S Tryon of Redwood City CA (US)

Conductive Color Coatings

This abstract first appeared for US patent application 20250079036 titled 'Conductive Color Coatings

Original Abstract Submitted

an electronic device such as a power charger may include a conductive contact that conveys power signals. a coating may have adhesion and transition layers on the contact. the coating may have a thin-film interference filter having an uppermost layer that includes diamond-like carbon (dlc). if desired, the thin-film interference filter may have additional dlc layers stacked under the uppermost layer. the dlc layer(s) may include nitrogen to optimize corrosion resistance. the dlc layer(s) may include first and second metal dopants such as tungsten and chromium to optimize the electrical resistance and conductivity of the coating. the coating may exhibit a deep black, grey, and/or blue color.