Precious Metal Film Formation Methods
Plating Processes
We can suggest high-performanceplating processes.
We offer various plating processes, including those using precious metal plating solutions, for various applications from semiconductor components to decorative articles. We offer highly productive plating processes with plating characteristics appropriate for their intended use.
Gold electroplating
PRECIOUSFAB Au series
The superior bondability, heat resistance, and solderability of this series make them ideal for semiconductor components. Excellent thickness uniformity at a low gold concentration, enabling reduced Au consumption.
PRECIOUSFAB Au-GB series
Gold electroplating process for wafer bumps. This series has excellent thickness uniformity, enabling plating with a high current density and low operation temperatures.
MICROFAB Au series
Non-cyanide Au plating for wafers. This series provides excellent properties for bump and fine pattern formation.
| Process name | Application | Features |
|---|---|---|
| PRECIOUSFAB Au 8400 | Bonding pad areas | Good uniform electrodeposition, Neutral cyanide |
| PRECIOUSFAB Au-MLA300 | Low gold concentration, Ni elution prevention, Neutral cyanide |
|
| PRECIOUSFAB Au-GB5 | Wafers (bump) | Low operation temperature, Neutral cyanide |
| MICROFAB Au310 | Wafers (wiring) | Very fine surface roughness, Neutral non-cyanide |
| MICROFAB AuFL2100 | Low gold concentration, Neutral non-cyanide |
|
| MICROFAB Au660 | Wafers(bump) | Low hardness, high-speed, Neutral non-cyanide |
| MICROFAB Au3151 | High hardness, high-speed, Neutral non-cyanide |
Gold alloy electroplating
PRECIOUSFAB HG series
Excellent electrical properties, abrasion resistance, corrosion resistance, and solderability. This series is suitable for connectors and other electronic components.
PRECIOUSFAB GＴ series
Electrolytic gold-tin alloy process. This series allows easy adjustment of alloy ratios, making it possible to adjust them according to their melting temperatures.
PRECIOUSFAB GS series
Electrolytic gold-silver alloy process. This series has both the corrosion resistance of gold and reflectivity of silver, making them ideal for LED components.
| Process name | Application | ||
|---|---|---|---|
| Au-Co | PRECIOUSFAB HG-GVC | Connectors, PWB | Acidity cyanide |
| PRECIOUSFAB HG-ICC7 | Ni barrier property, Acidity cyanide | ||
| FINE BARRIER 7000 | Ni barrier property, Acidity cyanide | ||
| Au-Ni | PRECIOUSFAB HG-GVN | Connectors, PWB | Acidity cyanide |
| PRECIOUSFAB HG-ICN100 | Ni barrier property, Acidity cyanide | ||
| Au-Sn20% | PRECIOUSFAB GT1000 | Alternative to coalescent | Acidity cyanide |
| Au-Ag50% | PRECIOUSFAB GS3000 | Lead frames | Alkali cyanide |
Gold strike plating
PRECIOUSFAB Au-ST
With “Au-ST400” (Chlorine free), stainless steel can be plated directly in a strongly acid strike bath.
MICROFAB Au NX-ST
Non-cyanide type strike bath.
| Process name | Application | Features |
|---|---|---|
| PRECIOUSFAB Au-ST100 | General use | Acidity cyanide |
| K-130AF | Acidity cyanide, Mildew-proofing | |
| PRECIOUSFAB Au-ST400 | SUS materials | Chlorine-free, Strong acidity cyanide |
| N-205 | High gloss, Strong acidity cyanide | |
| MICROFAB Au NX-ST | Wafer | Neutral non-cyanide |
Electroless gold plating
IM MEISTER Au series
Excellent adhesion and solder wettability on electroless Ni plating.
“IG100” develops uniform film thickness on Pd film.
CERAGOLD series
Self-reduction type thick Pb-free electroless gold plating process.
SUPERMEX series
Non-cyanide electroless gold plating process applied to electrolytic and electroless Ni plating.
| Process name | Application | Features |
|---|---|---|
| IM MEISTER Au1100S | Bonding pad areas | Immersion thin plating, Cyanide |
| IM MEISTER AuFX5 | Immersion thick plating, Cyanide | |
| IM MEISTER Au-IG100 | Uniform immersion thick Pd plating, Cyanide |
|
| IM MEISTER Au-IGS2020 | Uniform immersion thick Pd plating, Non-cyanide |
|
| ATOMEX | Ceramic parts, etc. | Immersion thin plating, Cyanide |
| CERAGOLD 6070 | Reduction thick plating, Pb-free, Cyanide |
|
| SUPERMEX 250 | Wafers, general use | Immersion thin plating, Non-cyanide |
| SUPERMEX 850 | Reduction thick plating, Non-cyanide |
Silver plating
■Cyanide type
| Process name | Application | Features |
|---|---|---|
| Ag-10 | General use | Hard, High cyanide |
| LED BRIGHT Ag-20 | LEDs and others | Gloss, High cyanide |
| SP-4000 | Lead frames | Under high current density, Low cyanide |
■Non-Cyanide type
| Process name | Application | Features |
|---|---|---|
| PRECIOUSFAB Ag4730 | Wafer | Non-cyanide |
Platinum group plating
PRECIOUSFAB Pd series
The “AD series” is a palladium plating process with less ammonia odor, which is friendly to the work environment and offers excellent corrosion resistance at high temperatures.
PRECIOUSFAB Pt series
Platinum plating process that enables thick plating with low stress and crackless.
PRECIOUSFAB Rh, Ru, Ir
Plating process that enables decorative plating for industrial use.
| Process name | Application | Features | |
|---|---|---|---|
| Pd | BELLPLATE | Decorative articles | White bright surface |
| PRECIOUSFAB Pd-ADP720 | Lead frames (Pd-PPF) |
Thin-film high heat resistance | |
| PRECIOUSFAB Pd-ADG820 | |||
| PRECIOUSFAB Pd82GVE | Connectors | Pd-Ni 20% alloy | |
| PRECIOUSFAB PC200 | Probe pins | Pd-Co 20% alloy | |
| MICROFAB Pd700 | Wafers (bump) | Neutral, thick plating | |
| Pd-LF-800S | General use | Strike – Thick plating | |
| Pt | PRECIOUSFAB Pt3LS | Electronic components |
Acidity |
| PRECIOUSFAB Pt2000 | Acidity, High corrosion resistance | ||
| PRECIOUSFAB Pt3000 | Wafer | Mild acidity | |
| Rh | PRECIOUSFAB Rh200 | Electronic components |
Low stress, High hardness |
| PRECIOUSFAB Rh2000 | Decorative articles | White surfaces | |
| Ru | PRECIOUSFAB Ru1000 | Electronic components |
Acidity, Low Ru concentration |
| Ir | PRECIOUSFAB Ir300 | High hardness | |