Second Sight Medical Products, Inc.
Platinum Electrode Surface Coating and Method for Manufacturing the Same

Abstract:

An electrode surface coating and method for manufacturing the electrode surface coating comprising a conductive substrate; a surface coating of platinum having a rough configuration and an increase in the surface area of 5 times to 500 times the corresponding surface area resulting from the basic geometric shape of the electrode. A method for electroplating an electrode surface with platinum coating having a rough surface, comprising electroplating the surface of a conductive substrate at a rate such that the metal particles form on the conductive substrate faster than necessary to form shiny platinum and slower than necessary to form platinum black.