Patent ID: 11898264
Assignee: HUTCHINSON TECHNOLOGY INCORPORATED
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 10:
11. The method of claim 6, wherein the gold electroplating solution includes:
a gold (III) cyanide compound, the gold (III) cyanide compound being one of potassium gold (III) cyanide, ammonium gold (III) cyanide, and sodium gold (III) cyanide;
a chloride compound, the chloride compound being one of potassium chloride, ammonium chloride, and sodium chloride; and hydrochloric acid,
wherein if the gold (III) cyanide compound is potassium gold (III) cyanide, then the chloride compound is potassium chloride; if the gold (III) cyanide compound is ammonium gold (III) cyanide, then the chloride compound is ammonium chloride, and if the gold (III) cyanide compound is sodium gold (III) cyanide, then the chloride compound is sodium chloride.