Semiconductor Sulfite Gold Plating Chemistry

Technic's industry-leading Elevate^® Gold 7990 NBV HT is a cyanide-free, electrolytic sulfite gold process designed specifically for semiconductor applications. The process produces pure, soft bright gold deposits from a slightly acidic solution without the use of harmful toxic metallic grain refiners such as thallium and arsenic.  

Key Features & Benefits

Versatility: Elevate^® Gold 7990 NBV HT has become the process of choice in a wide range of industry applications including, but not limited to RDL, blanket deposits, pattern plating, conformal via plating, and thick gold bumping. The process can be used for plating several different applications without major modifications to the solution and can be used on a variety of different tool sets.  

• Thickness ranging from <1 to 100 microns
• Extremely compatible with almost all photoresist
• Process of choice for a wide range of applications

Stability: While typical sulfite gold baths run at a pH of approximately 9.0, Technic's proprietary stabilizer allows for maximum bath stability with an atypical, slightly acidic, optimum pH of 6.6. The low pH provides the following benefits:

• Bright deposits without the use of toxic metallic grain refiners
• Smooth grain structure
• Excellent step coverage
• Extended bath life

Availability: North America, Asia Pacific, Europe