Platinum electrode surface coating and method for manufacturing the same
AssigneeSecond Sight Medical Products, Inc.
InventorDao Min Zhou
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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 of 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.
Claims15
An electrode comprising:
- conductive substrate having a basic surface area defined by its geometric shape;
- and
- a surface coating of platinum having a rough configuration and an increased surface area 5 times to 500 times the basic surface area with regular grains, between 0.1μ and 2.0 μm in size.
Dependencies are inferred from the claim text.