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Special Gold Room Temperature Metallizing For Alumina Gold Plating Preparations For Electronics And Semiconductor Applications PURE GOLD SG-10 Electroplates Pure Gold (99.99%) Up To 1 Mil Thick. GOLD-ANTIMONY SG-20 Electroplates Gold Alloy Containing 0.5% Sb. GOLD-GALLIUM SG-30 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. SPECIAL GOLD Electrolytic Plating Solutions DESCRIPTION: 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
The composition of gold alloy deposits may be altered by varying the current density. Gold content is 1 troy ounce per gallon plating solution. APPLICATIONS: 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.
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