Apple Inc.

Jeremy Li

Christopher D Prest

Brian S Tryon

Isabel Yang

Lijie Bao

Yi Heng Chen

James A Yurko

Todd S Mintz

Brian M Gable

Yi Chun Chen

James Yurko

Todd Mintz

Brian Gable

An electronic device such as a wristwatch may include a conductive housing. A corrosion-resistant coating may be deposited on the conductive housing. The coating may include transition layers and an uppermost alloy layer. The transition layers may include a chromium seed layer on the conductive housing and a chromium nitride layer on the chromium seed layer. The uppermost alloy layer may include TiCrCN or other alloys and may provide the coating with desired optical reflection and absorption characteristics. The transition layers may include a minimal number of coating defects, thereby eliminating potential sites at which visible defects could form when exposed to salt water. This may allow the electronic device to exhibit a desired color and to be submerged in salt water without producing undesirable visible defects on the conductive housing structures.

Electronic devices having corrosion-resistant coatings

Growing community of inventors

San Jose, CA, United States of America

Jeremy Li