PURE GOLD SG-10
Electroplates Pure Gold (99.99%) Up To 1 Mil Thick.
Electroplates Gold Alloy Containing 0.5% Sb.
Electroplates Gold Alloy Containing 0.5% Ga.
GOLD – INDIUM SG-40
Electroplates Gold Alloy Containing 0.5% In.
GOLD – ZINC SG-50
Electroplates Gold Alloy Containing 0.5% Zn.
Electrolytic Plating Solutions
PURE GOLD SG-10 is a highly efficient electroplating formulation processed from hyper-pure gold compounds and well buffered for trouble free operation. It deposits pure gold (99.99%) with excellent plate characteristics, even on stainless steel. The gold has center cubic structure and Rockwell hardness of 24 (15T scale).
SPECIAL GOLD SG-20 through SG-50 are gold alloy plating solutions with good plating characteristics. The minor alloy constituent, Sb, Ga, In, or Zn contained in the electroplate is on the order of 0.5%.
GENERAL OPERATING CONDITIONS
|Current Density||10 Amperes/ft2|
|Anode Composition||Gold or Stainless Steel|
|Anode to Cathode Ratio||2:1|
|Still or Mechanical Agitation||90 to 100% efficiency|
|pH||11.0 to 11.8 (electrometric)|
|Tank||Pyrex Glass, Fiberglass, or Stainless Steel|
|Plating Rate||0.5 mil/hr|
The composition of gold alloy deposits may be altered by varying the current density. Gold content is 1 troy ounce per gallon plating solution.
PURE-GOLD SG-10 is intended for general purpose, heavy gold plating to comply with MIL specifications. A gold plate of 50 millionths protects against all acid etchants (aqua regia excepted) and insures corrosion resistance under all environments.
Electrical contacts plated with PURE-GOLD SG-10 afford very low contact resistance, in the milliohm range, and very low noise levels. Particular importance is placed upon SG-10 in low level signal circuitry to eliminate contact noise problems. In waveguide applications SG-10 can be relied upon to produce quality plating to prevent corrosion and to minimize RF attenuation losses. In addition, the optical properties of SG-10 afford high reflectivity, greater than 90%, in the infrared region. In general, SG-10 provides functional uses for electrical contacts and terminals, electronic tube base pins, switches, printed circuits, and waveguides.
SPECIAL GOLD alloy plating solutions serve as “doped” gold in a simple, convenient method in preparing low resistance electrical contacts for semiconductors. The gold alloy plate is heat-fused at approximately 500 °C to form p+ and n + ohmic contacts.
|Silicon, Germanium||Gold-Gallium (SG-30)||Gold-Antimony (SG-20)|
|Gallium arsenide,phosphide||Gold-Zinc (SG-50)|